View PIC18F8723EPT_4982563.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

PIC18F8723 Family Data Sheet
64/80-Pin, 1-Mbit, Enhanced Flash Microcontrollers with 12-Bit A/D and nanoWatt Technology
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A
Note the following details of the code protection feature on Microchip devices: * * * Microchip products meet the specification contained in their particular Microchip Data Sheet. Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip's Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property. Microchip is willing to work with the customer who is concerned about the integrity of their code. Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as "unbreakable."
* *
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our products. Attempts to break Microchip's code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life support and/or safety applications is entirely at the buyer's risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights.
Trademarks The Microchip name and logo, the Microchip logo, Accuron, dsPIC, KEELOQ, KEELOQ logo, microID, MPLAB, PIC, PICmicro, PICSTART, PRO MATE, rfPIC and SmartShunt are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. AmpLab, FilterLab, Linear Active Thermistor, Migratable Memory, MXDEV, MXLAB, SEEVAL, SmartSensor and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A. Analog-for-the-Digital Age, Application Maestro, CodeGuard, dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN, ECONOMONITOR, FanSense, FlexROM, fuzzyLAB, In-Circuit Serial Programming, ICSP, ICEPIC, Mindi, MiWi, MPASM, MPLAB Certified logo, MPLIB, MPLINK, PICkit, PICDEM, PICDEM.net, PICLAB, PICtail, PowerCal, PowerInfo, PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Smart Serial, SmartTel, Total Endurance, UNI/O, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. (c) 2007, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper.
Microchip received ISO/TS-16949:2002 certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona; Gresham, Oregon and design centers in California and India. The Company's quality system processes and procedures are for its PIC(R) MCUs and dsPIC(R) DSCs, KEELOQ(R) code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip's quality system for the design and manufacture of development systems is ISO 9001:2000 certified.
DS39894A-page ii
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723 FAMILY
64/80-Pin, 1-Mbit, Enhanced Flash Microcontrollers with 12-Bit A/D and nanoWatt Technology
Peripheral Highlights:
* 12-Bit, Up to 16-Channel Analog-to-Digital Converter module (A/D): - Auto-acquisition capability - Conversion available during Sleep * Two Master Synchronous Serial Port (MSSP) modules supporting 2/3/4-Wire SPI (all four modes) and I2CTM Master and Slave modes * Two Capture/Compare/PWM (CCP) modules * Three Enhanced Capture/Compare/PWM (ECCP) modules: - One, two or four PWM outputs - Selectable polarity - Programmable dead time - Auto-shutdown and auto-restart * Two Enhanced Addressable USART modules: - Supports RS-485, RS-232 and LIN 1.2 - Auto-wake-up on Start bit - Auto-Baud Detect * Dual Analog Comparators with Input Multiplexing * High-Current Sink/Source 25 mA/25 mA * Four Programmable External Interrupts * Four Input Change Interrupts
Power-Managed Modes:
* * * * * * * Run: CPU on, Peripherals on Idle: CPU off, Peripherals on Sleep: CPU off, Peripherals off Idle mode Currents Down to 15 A Typical Sleep Current Down to 0.2 A Typical Timer1 Oscillator: 1.8 A, 32 kHz, 2V Watchdog Timer: 2.1 A
Special Microcontroller Features:
* C Compiler Optimized Architecture: - Optional extended instruction set designed to optimize re-entrant code * 100,000 Erase/Write Cycle Enhanced Flash Program Memory Typical * 1,000,000 Erase/Write Cycle Data EEPROM Memory Typical * Flash/Data EEPROM Retention: 100 Years Typical * Self-Programmable under Software Control * Priority Levels for Interrupts * 8 x 8 Single-Cycle Hardware Multiplier * Extended Watchdog Timer (WDT): - Programmable period from 4 ms to 131s * Single-Supply In-Circuit Serial ProgrammingTM (ICSPTM) via Two Pins * In-Circuit Debug (ICD) via Two Pins * Wide Operating Voltage Range: 2.0V to 5.5V * Fail-Safe Clock Monitor * Two-Speed Oscillator Start-up * nanoWatt Technology Note: This document is supplemented by the "PIC18F8722 Family Data Sheet" (DS39646). See Section 1.0 "Device Overview".
External Memory Interface:
* Address Capability of Up to 2 Mbytes * 8-Bit or 16-Bit Interface * 8, 12, 16 and 20-Bit Address modes
EUSART
Device
Flash # Single-Word SRAM EEPROM (bytes) Instructions (bytes) (bytes) 96K 128K 96K 128K 49152 65536 49152 65536 3936 3936 3936 3936 1024 1024 1024 1024
I/O
CCP/ 12-Bit ECCP A/D (ch) (PWM) 12 12 16 16 2/3 2/3 2/3 2/3 2 2 2 2
SPI Y Y Y Y
Master I2CTM Y Y Y Y
PIC18F6628 PIC18F6723 PIC18F8628 PIC18F8723
54 54 70 70
2 2 2 2
2 2 2 2
2/3 2/3 2/3 2/3
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 1
External Bus N N Y Y
Timers 8/16-Bit
Program Memory
Data Memory
MSSP
Comparators
PIC18F8723
Pin Diagrams
64-Pin TQFP
RE7/ECCP2(1)/P2A(1)
RD6/PSP6/SCK2/SCL2
RD5/PSP5/SDI2/SDA2
RD4/PSP4/SDO2
RE3/P3C
RE5/P1C
RE4/P3B
RE6/P1B
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 RE1/WR/P2C RE0/RD/P2D RG0/ECCP3/P3A RG1/TX2/CK2 RG2/RX2/DT2 RG3/CCP4/P3D RG5/MCLR/VPP RG4/CCP5/P1D VSS VDD RF7/SS1 RF6/AN11 RF5/AN10/CVREF RF4/AN9 RF3/AN8 RF2/AN7/C1OUT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 RB0/INT0 RB1/INT1 RB2/INT2 RB3/INT3 RB4/KBI0 RB5/KBI1/PGM RB6/KBI2/PGC VSS OSC2/CLKO/RA6 OSC1/CLKI/RA7 VDD RB7/KBI3/PGD RC5/SDO1 RC4/SDI1/SDA1 RC3/SCK1/SCL1 RC2/ECCP1/P1A
PIC18F6628 PIC18F6723
RF0/AN5
RC6/TX1/CK1
RA1/AN1
RA0/AN0
RA4/T0CKI RC1/T1OSI/ECCP2(1)/P2A(1)
Note 1:
The ECCP2/P2A pin placement is determined by the CCP2MX Configuration bit.
DS39894A-page 2
Preliminary
RC0/T1OSO/T13CKI
AVSS RA3/AN3/VREF+
RA5/AN4/HLVDIN
RF1/AN6/C2OUT
RA2/AN2/VREF-
RC7/RX1/DT1
AVDD
VSS
VDD
RD7/PSP7/SS2
RE2/CS/P2B
RD0/PSP0
RD1/PSP1
RD2/PSP2
RD3/PSP3
VDD
VSS
(c) 2007 Microchip Technology Inc.
PIC18F8723
Pin Diagrams (Continued)
80-Pin TQFP
RH2/A18 RH3/A19 RE1/AD9/WR/P2C RE0/AD8/RD/P2D RG0/ECCP3/P3A RG1/TX2/CK2 RG2/RX2/DT2 RG3/CCP4/P3D RG5/MCLR/VPP RG4/CCP5/P1D VSS VDD RF7/SS1 RF6/AN11 RF5/AN10/CVREF RF4/AN9 RF3/AN8 RF2/AN7/C1OUT RH7/AN15/P1B(2) RH6/AN14/P1C(2)
RH1/A17 RH0/A16 RE2/AD10/CS/P2B RE3/AD11/P3C(2) RE4/AD12/P3B(2) RE5/AD13/P1C(2) RE6/AD14/P1B(2) RE7/AD15/ECCP2(1)/P2A(1) RD0/AD0/PSP0 VDD VSS RD1/AD1/PSP1 RD2/AD2/PSP2 RD3/AD3/PSP3 RD4/AD4/PSP4/SDO2 RD5/AD5/PSP5/SDI2/SDA2 RD6/AD6/PSP6/SCK2/SCL2 RD7/AD7/PSP7/SS2 RJ0/ALE RJ1/OE 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 RJ2/WRL RJ3/WRH RB0/INT0 RB1/INT1 RB2/INT2 RB3/INT3/ECCP2(1)/P2A(1) RB4/KBI0 RB5/KBI1/PGM RB6/KBI2/PGC VSS OSC2/CLKO/RA6 OSC1/CLKI/RA7 VDD RB7/KBI3/PGD RC5/SDO1 RC4/SDI1/SDA1 RC3/SCK1/SCL1 RC2/ECCP1/P1A RJ7/UB RJ6/LB
PIC18F8628 PIC18F8723
RF1/AN6/C2OUT RF0/AN5 AVDD AVSS RA3/AN3/VREF+ RA2/AN2/VREF-
Note 1: 2:
The ECCP2/P2A pin placement is determined by the CCP2MX Configuration bit and Processor mode settings. P1B, P1C, P3B and P3C pin placement is determined by the ECCPMX Configuration bit.
(c) 2007 Microchip Technology Inc.
Preliminary
RA5/AN4/HLVDIN RA4/T0CKI RC1/T1OSI/ECCP2(1)/P2A(1)
RC0/T1OSO/T13CKI RC6/TX1/CK1 RC7/RX1/DT1 RJ4/BA0 RJ5/CE
RH5/AN13/P3B(2) RH4/AN12/P3C(2)
RA1/AN1 RA0/AN0 VSS VDD
DS39894A-page 3
PIC18F8723
Table of Contents
1.0 Device Overview .......................................................................................................................................................................... 7 2.0 12-Bit Analog-to-Digital Converter (A/D) Module ....................................................................................................................... 29 3.0 Special Features of the CPU ...................................................................................................................................................... 39 4.0 Electrical Characteristics ........................................................................................................................................................... 41 5.0 Packaging Information................................................................................................................................................................ 47 Appendix A: Revision History............................................................................................................................................................... 49 Appendix B: Device Differences........................................................................................................................................................... 49 Appendix C: Conversion Considerations ............................................................................................................................................. 50 Appendix D: Migration From Baseline to Enhanced Devices............................................................................................................... 50 Appendix E: Migration From Mid-Range to Enhanced Devices ........................................................................................................... 51 Appendix F: Migration From High-End to Enhanced Devices.............................................................................................................. 51 Index .................................................................................................................................................................................................... 53 The Microchip Web Site ....................................................................................................................................................................... 55 Customer Change Notification Service ................................................................................................................................................ 55 Customer Support ................................................................................................................................................................................ 55 Reader Response ................................................................................................................................................................................ 56 PIC18F8723 Family Product Identification System.............................................................................................................................. 57
DS39894A-page 4
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723
TO OUR VALUED CUSTOMERS
It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and enhanced as new volumes and updates are introduced. If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via E-mail at docerrors@microchip.com or fax the Reader Response Form in the back of this data sheet to (480) 792-4150. We welcome your feedback.
Most Current Data Sheet
To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at: http://www.microchip.com You can determine the version of a data sheet by examining its literature number found on the bottom outside corner of any page. The last character of the literature number is the version number, (e.g., DS30000A is version A of document DS30000).
Errata
An errata sheet, describing minor operational differences from the data sheet and recommended workarounds, may exist for current devices. As device/documentation issues become known to us, we will publish an errata sheet. The errata will specify the revision of silicon and revision of document to which it applies. To determine if an errata sheet exists for a particular device, please check with one of the following: * Microchip's Worldwide Web site; http://www.microchip.com * Your local Microchip sales office (see last page) When contacting a sales office, please specify which device, revision of silicon and data sheet (include literature number) you are using.
Customer Notification System
Register on our web site at www.microchip.com to receive the most current information on all of our products.
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 5
PIC18F8723
NOTES:
DS39894A-page 6
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723 FAMILY
1.0 DEVICE OVERVIEW
1.2
This document contains device-specific information for the following devices: * PIC18F6628 * PIC18F6723 * PIC18F8628 * PIC18F8723 * PIC18LF6628 * PIC18LF6723 * PIC18LF8628 * PIC18LF8723
Details on Individual Family Members
Devices in the PIC18F8723 family are available in 64-pin and 80-pin packages. Block diagrams for the two groups are shown in Figure 1-1 and Figure 1-2. The devices are differentiated from each other in the following ways: * Flash program memory (96 Kbytes for PIC18FX628 devices and 128 Kbytes for PIC18FX723). * A/D channels (12 for PIC18F6628/6723 devices and 16 for PIC18F8628/8723 devices). * I/O ports (seven bidirectional ports on PIC18F6628/6723 devices and nine bidirectional ports on PIC18F8628/8723 devices). * External Memory Bus, configurable for 8 and 16-bit operation All other features for devices in this family are identical. These are summarized in Table 1-1. The pinouts for all devices are listed in Table 1-2 and Table 1-3. Like all Microchip PIC18 devices, members of the PIC18F8723 family are available as both standard and low-voltage devices. Standard devices with Enhanced Flash memory, designated with an "F" in the part number (such as PIC18F6628), accommodate an operating VDD range of 4.2V to 5.5V. Low-voltage parts, designated by "LF" (such as PIC18LF6628), function over an extended VDD range of 2.0V to 5.5V.
Note: This data sheet documents only the devices' features and specifications that are in addition to the features and specifications of the PIC18F8722 family devices. For information on the features and specifications shared by the PIC18F8723 family and PIC18F8722 family devices, see the "PIC18F8722 Family Data Sheet" (DS39646). The PIC18F8723 family of devices offers the advantages of all PIC18 microcontrollers - namely, high computational performance at an economical price - with the addition of high-endurance, Enhanced Flash program memory. In addition to these features, the PIC18F8723 introduces design enhancements that make these microcontrollers a logical choice for many high-performance, power-sensitive applications.
1.1
Special Features
* 12-Bit A/D Converter: The PIC18F8723 family implements a 12-bit A/D Converter. A/D Converters in both families incorporate programmable acquisition time. This allows for a channel to be selected and a conversion to be initiated, without waiting for a sampling period and thus, reducing code overhead.
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 7
PIC18F8723 FAMILY
TABLE 1-1:
Features Operating Frequency Program Memory (Bytes) Program Memory (Instructions) Data Memory (Bytes) Data EEPROM Memory (Bytes) Interrupt Sources I/O Ports Timers Capture/Compare/PWM Modules Enhanced Capture/Compare/ PWM Modules Enhanced USART Serial Communications Parallel Communications (PSP) 12-Bit Analog-to-Digital Module Resets (and Delays)
DEVICE FEATURES
PIC18F6628 DC - 40 MHz 96K 49152 3936 1024 28 Ports A, B, C, D, E, F, G 5 2 3 2 MSSP, Enhanced USART Yes 12 Input Channels PIC18F6723 DC - 40 MHz 128K 65536 3936 1024 28 Ports A, B, C, D, E, F, G 5 2 3 2 MSSP, Enhanced USART Yes 12 Input Channels PIC18F8628 DC - 40 MHz 96K 49152 3936 1024 29 Ports A, B, C, D, E, F, G, H, J 5 2 3 2 MSSP, Enhanced USART Yes 16 Input Channels PIC18F8723 DC - 40 MHz 128K 65536 3936 1024 29 Ports A, B, C, D, E, F, G, H, J 5 2 3 2 MSSP, Enhanced USART Yes 16 Input Channels
POR, BOR, POR, BOR, POR, BOR, POR, BOR, RESET Instruction, RESET Instruction, RESET Instruction, RESET Instruction, Stack Full, Stack Stack Full, Stack Stack Full, Stack Stack Full, Stack Underflow (PWRT, OST), Underflow (PWRT, OST), Underflow (PWRT, OST), Underflow (PWRT, OST), MCLR (optional), WDT MCLR (optional), WDT MCLR (optional), WDT MCLR (optional), WDT Yes Yes 75 Instructions; 83 with Extended Instruction Set Enabled 64-Pin TQFP Yes Yes 75 Instructions; 83 with Extended Instruction Set Enabled 64-Pin TQFP Yes Yes 75 Instructions; 83 with Extended Instruction Set Enabled 80-Pin TQFP Yes Yes 75 Instructions; 83 with Extended Instruction Set Enabled 80-Pin TQFP
Programmable High/Low-Voltage Detect Programmable Brown-out Reset Instruction Set
Packages
DS39894A-page 8
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723 FAMILY
FIGURE 1-1: PIC18F6628/6723 (64-PIN) BLOCK DIAGRAM
Table Pointer<21> inc/dec logic 21 20 8
PCLATU PCLATH
Data Bus<8> Data Latch Data Memory (3.9 Kbytes) Address Latch 12 Data Address<12> 4 BSR 12 FSR0 FSR1 FSR2 inc/dec logic 4 Access Bank 12 PORTC RC0:RC7(1) PORTB RB0:RB7(1) PORTA RA0:RA7(1)
8
PCU PCH PCL Program Counter 31 Level Stack
Address Latch Program Memory (48/64/96/128 Kbytes) Data Latch 8 Table Latch STKPTR
Instruction Bus <16>
ROM Latch
Address Decode PORTD RD0:RD7(1) 8
IR
Instruction Decode and Control
State Machine Control Signals
PRODH PRODL 3 8 x 8 Multiply 8 W 8 8 ALU<8> Precision Band Gap Reference 8 8
PORTE RE0:RE7(1)
OSC1(3) OSC2(3) T1OSI T1OSO MCLR(2) VDD, VSS
Internal Oscillator Block INTRC Oscillator 8 MHz Oscillator Single-Supply Programming In-Circuit Debugger
Power-up Timer Oscillator Start-up Timer Power-on Reset Watchdog Timer Brown-out Reset Fail-Safe Clock Monitor
BITOP 8
8
PORTF RF0:RF7(1)
PORTG RG0:RG5(1,2)
BOR HLVD
ADC 12-Bit
Timer0
Timer1
Timer2
Timer3
Timer4
Comparators
ECCP1
ECCP2
ECCP3
CCP4
CCP5
EUSART1
EUSART2
MSSP1
MSSP2
Note
1: 2: 3:
See Table 1-2 for I/O port pin descriptions. RG5 is only available when MCLR functionality is disabled. OSC1/CLKI and OSC2/CLKO are only available in select oscillator modes and when these pins are not being used as digital I/O. For additional information, refer to Section 2.0 "Oscillator Configurations" of the "PIC18F8722 Family Data Sheet" (DS39646).
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 9
PIC18F8723 FAMILY
FIGURE 1-2: PIC18F8628/8723 (80-PIN) BLOCK DIAGRAM
Data Bus<8> Table Pointer<21> inc/dec logic 21 20 Data Latch Data Memory (3.9 Kbytes) Address Latch 12 Data Address<12> 4
BSR
PORTA RA0:RA7(1)
8
PCLATU PCLATH
8
PCU PCH PCL Program Counter 31 Level Stack
PORTB RB0:RB7(1)
System Bus Interface
Address Latch Program Memory (48/64/96/128 Kbytes) Data Latch 8 Table Latch STKPTR
12 FSR0 FSR1 FSR2 inc/dec logic
4
Access Bank
PORTC RC0:RC7(1)
12 PORTD RD0:RD7(1)
ROM Latch Instruction Bus <16> IR AD15:AD0, A19:A16 (Multiplexed with PORTD, PORTE and PORTH) Instruction Decode & Control
Address Decode PORTE RE0:RE7(1) 8
State Machine Control Signals
PRODH PRODL 3 BITOP 8 8 x 8 Multiply 8 W 8 8 8
PORTF RF0:RF7(1)
PORTG RG0:RG5(1,2)
OSC1(3) OSC2(3) T1OSI T1OSO MCLR(2) VDD, VSS
Internal Oscillator Block INTRC Oscillator 8 MHz Oscillator Single-Supply Programming In-Circuit Debugger
Power-up Timer Oscillator Start-up Timer Power-on Reset Watchdog Timer Brown-out Reset Fail-Safe Clock Monitor
8 ALU<8> 8
PORTH RH0:RH7(1)
Precision Band Gap Reference
PORTJ RJ0:RJ7(1)
BOR HLVD
ADC 12-bit
Timer0
Timer1
Timer2
Timer3
Timer4
Comparators
ECCP1
ECCP2
ECCP3
CCP4
CCP5
EUSART1
EUSART2
MSSP1
MSSP2
Note
1: 2: 3:
See Table 1-3 for I/O port pin descriptions. RG5 is only available when MCLR functionality is disabled. OSC1/CLKI and OSC2/CLKO are only available in select oscillator modes and when these pins are not being used as digital I/O. For additional information, refer to Section 2.0 "Oscillator Configurations" of the "PIC18F8722 Family Data Sheet" (DS39646).
DS39894A-page 10
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723 FAMILY
TABLE 1-2:
Pin Name RG5/MCLR/VPP RG5 MCLR VPP OSC1/CLKI/RA7 OSC1 39 I
PIC18F6628/6723 (64-PIN) PINOUT I/O DESCRIPTIONS
Pin Number TQFP 7 I I P ST ST ST Pin Type Buffer Type Description Master Clear (input) or programming voltage (input). Digital input. Master Clear (Reset) input. This pin is an active-low Reset to the device. Programming voltage input.
CLKI
I
RA7 OSC2/CLKO/RA6 OSC2 CLKO 40
I/O O O
Oscillator crystal or external clock input. Oscillator crystal input or external clock source input. ST buffer when configured in RC mode, CMOS otherwise. CMOS External clock source input. Always associated with pin function OSC1. (See related OSC1/CLKI, OSC2/CLKO pins.) TTL General purpose I/O pin. -- -- Oscillator crystal or clock output. Oscillator crystal output. Connects to crystal or resonator in Crystal Oscillator mode. In RC mode, OSC2 pin outputs CLKO, which has 1/4 the frequency of OSC1 and denotes the instruction cycle rate. General purpose I/O pin.
RA6
I/O
TTL
Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output ST = Schmitt Trigger input with CMOS levels Analog = Analog input I = Input O = Output = I2C/SMBus input buffer P = Power I2CTM Note 1: Default assignment for ECCP2 when Configuration bit, CCP2MX, is set. 2: Alternate assignment for ECCP2 when Configuration bit, CCP2MX, is cleared.
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 11
PIC18F8723 FAMILY
TABLE 1-2:
Pin Name
PIC18F6628/6723 (64-PIN) PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Number TQFP Pin Type Buffer Type Description PORTA is a bidirectional I/O port.
RA0/AN0 RA0 AN0 RA1/AN1 RA1 AN1 RA2/AN2/VREFRA2 AN2 VREFRA3/AN3/VREF+ RA3 AN3 VREF+ RA4/T0CKI RA4 T0CKI RA5/AN4/HLVDIN RA5 AN4 HLVDIN RA6 RA7
24 I/O I 23 I/O I 22 I/O I I 21 I/O I I 28 I/O I 27 I/O I I TTL Analog Analog Digital I/O. Analog input 4. High/Low-Voltage Detect input. See the OSC2/CLKO/RA6 pin. See the OSC1/CLKI/RA7 pin. ST ST Digital I/O. Timer0 external clock input. TTL Analog Analog Digital I/O. Analog input 3. A/D reference voltage (high) input. TTL Analog Analog Digital I/O. Analog input 2. A/D reference voltage (low) input. TTL Analog Digital I/O. Analog input 1. TTL Analog Digital I/O. Analog input 0.
Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output ST = Schmitt Trigger input with CMOS levels Analog = Analog input I = Input O = Output = I2C/SMBus input buffer P = Power I2CTM Note 1: Default assignment for ECCP2 when Configuration bit, CCP2MX, is set. 2: Alternate assignment for ECCP2 when Configuration bit, CCP2MX, is cleared.
DS39894A-page 12
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723 FAMILY
TABLE 1-2:
Pin Name
PIC18F6628/6723 (64-PIN) PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Number TQFP Pin Type Buffer Type Description PORTB is a bidirectional I/O port. PORTB can be software programmed for internal weak pull-ups on all inputs.
RB0/INT0/FLT0 RB0 INT0 FLT0 RB1/INT1 RB1 INT1 RB2/INT2 RB2 INT2 RB3/INT3 RB3 INT3 RB4/KBI0 RB4 KBI0 RB5/KBI1/PGM RB5 KBI1 PGM RB6/KBI2/PGC RB6 KBI2 PGC RB7/KBI3/PGD RB7 KBI3 PGD
48 I/O I I 47 I/O I 46 I/O I 45 I/O I 44 I/O I 43 I/O I I/O 42 I/O I I/O 37 I/O I I/O TTL TTL ST Digital I/O. Interrupt-on-change pin. In-Circuit Debugger and ICSP programming data pin. TTL TTL ST Digital I/O. Interrupt-on-change pin. In-Circuit Debugger and ICSP programming clock pin. TTL TTL ST Digital I/O. Interrupt-on-change pin. Low-Voltage ICSPTM Programming enable pin. TTL TTL Digital I/O. Interrupt-on-change pin. TTL ST Digital I/O. External interrupt 3. TTL ST Digital I/O. External interrupt 2. TTL ST Digital I/O. External interrupt 1. TTL ST ST Digital I/O. External interrupt 0. PWM Fault input for ECCPx.
Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output ST = Schmitt Trigger input with CMOS levels Analog = Analog input I = Input O = Output = I2C/SMBus input buffer P = Power I2CTM Note 1: Default assignment for ECCP2 when Configuration bit, CCP2MX, is set. 2: Alternate assignment for ECCP2 when Configuration bit, CCP2MX, is cleared.
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 13
PIC18F8723 FAMILY
TABLE 1-2:
Pin Name
PIC18F6628/6723 (64-PIN) PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Number TQFP Pin Type Buffer Type Description PORTC is a bidirectional I/O port.
RC0/T1OSO/T13CKI RC0 T1OSO T13CKI RC1/T1OSI/ECCP2/ P2A RC1 T1OSI ECCP2(1) P2A(1) RC2/ECCP1/P1A RC2 ECCP1 P1A RC3/SCK1/SCL1 RC3 SCK1 SCL1 RC4/SDI1/SDA1 RC4 SDI1 SDA1 RC5/SDO1 RC5 SDO1 RC6/TX1/CK1 RC6 TX1 CK1 RC7/RX1/DT1 RC7 RX1 DT1
30 I/O O I 29 I/O I I/O O 33 I/O I/O O 34 I/O I/O I/O 35 I/O I I/O 36 I/O O 31 I/O O I/O 32 I/O I I/O ST ST ST Digital I/O. EUSART1 asynchronous receive. EUSART1 synchronous data (see related TX1/CK1). ST -- ST Digital I/O. EUSART1 asynchronous transmit. EUSART1 synchronous clock (see related RX1/DT1). ST -- Digital I/O. SPI data out. ST ST ST Digital I/O. SPI data in. I2C data I/O. ST ST ST Digital I/O. Synchronous serial clock input/output for SPI mode. Synchronous serial clock input/output for I2CTM mode. ST ST -- Digital I/O. Enhanced Capture 1 input/Compare 1 output/ PWM1 output. ECCP1 PWM output A. ST CMOS ST -- Digital I/O. Timer1 oscillator input. Enhanced Capture 2 input/Compare 2 output/ PWM2 output. ECCP2 PWM output A. ST -- ST Digital I/O. Timer1 oscillator output. Timer1/Timer3 external clock input.
Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output ST = Schmitt Trigger input with CMOS levels Analog = Analog input I = Input O = Output = I2C/SMBus input buffer P = Power I2CTM Note 1: Default assignment for ECCP2 when Configuration bit, CCP2MX, is set. 2: Alternate assignment for ECCP2 when Configuration bit, CCP2MX, is cleared.
DS39894A-page 14
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723 FAMILY
TABLE 1-2:
Pin Name
PIC18F6628/6723 (64-PIN) PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Number TQFP Pin Type Buffer Type Description PORTD is a bidirectional I/O port.
RD0/PSP0 RD0 PSP0 RD1/PSP1 RD1 PSP1 RD2/PSP2 RD2 PSP2 RD3/PSP3 RD3 PSP3 RD4/PSP4/SDO2 RD4 PSP4 SDO2 RD5/PSP5/SDI2/ SDA2 RD5 PSP5 SDI2 SDA2 RD6/PSP6/SCK2/ SCL2 RD6 PSP6 SCK2 SCL2 RD7/PSP7/SS2 RD7 PSP7 SS2
58 I/O I/O 55 I/O I/O 54 I/O I/O 53 I/O I/O 52 I/O I/O O 51 I/O I/O I I/O 50 I/O I/O I/O I/O 49 I/O I/O I ST TTL TTL Digital I/O. Parallel Slave Port data. SPI slave select input. ST TTL ST I2C/SMB Digital I/O. Parallel Slave Port data. Synchronous serial clock input/output for SPI mode. Synchronous serial clock input/output for I2C mode. ST TTL ST I2C/SMB Digital I/O. Parallel Slave Port data. SPI data in. I2CTM data I/O. ST TTL -- Digital I/O. Parallel Slave Port data. SPI data out. ST TTL Digital I/O. Parallel Slave Port data. ST TTL Digital I/O. Parallel Slave Port data. ST TTL Digital I/O. Parallel Slave Port data. ST TTL Digital I/O. Parallel Slave Port data.
Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output ST = Schmitt Trigger input with CMOS levels Analog = Analog input I = Input O = Output = I2C/SMBus input buffer P = Power I2CTM Note 1: Default assignment for ECCP2 when Configuration bit, CCP2MX, is set. 2: Alternate assignment for ECCP2 when Configuration bit, CCP2MX, is cleared.
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 15
PIC18F8723 FAMILY
TABLE 1-2:
Pin Name
PIC18F6628/6723 (64-PIN) PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Number TQFP Pin Type Buffer Type Description PORTE is a bidirectional I/O port.
RE0/RD/P2D RE0 RD P2D RE1/WR/P2C RE1 WR P2C RE2/CS/P2B RE2 CS P2B RE3/P3C RE3 P3C RE4/P3B RE4 P3B RE5/P1C RE5 P1C RE6/P1B RE6 P1B RE7/ECCP2/P2A RE7 ECCP2(2) P2A(2)
2 I/O I O 1 I/O I O 64 I/O I O 63 I/O O 62 I/O O 61 I/O O 60 I/O O 59 I/O I/O O ST ST -- Digital I/O. Enhanced Capture 2 input/Compare 2 output/ PWM2 output. ECCP2 PWM output A. ST -- Digital I/O. ECCP1 PWM output B. ST -- Digital I/O. ECCP1 PWM output C. ST -- Digital I/O. ECCP3 PWM output B. ST -- Digital I/O. ECCP3 PWM output C. ST TTL -- Digital I/O. Chip select control for Parallel Slave Port. ECCP2 PWM output B. ST TTL -- Digital I/O. Write control for Parallel Slave Port. ECCP2 PWM output C. ST TTL -- Digital I/O. Read control for Parallel Slave Port. ECCP2 PWM output D.
Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output ST = Schmitt Trigger input with CMOS levels Analog = Analog input I = Input O = Output = I2C/SMBus input buffer P = Power I2CTM Note 1: Default assignment for ECCP2 when Configuration bit, CCP2MX, is set. 2: Alternate assignment for ECCP2 when Configuration bit, CCP2MX, is cleared.
DS39894A-page 16
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723 FAMILY
TABLE 1-2:
Pin Name
PIC18F6628/6723 (64-PIN) PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Number TQFP Pin Type Buffer Type Description PORTF is a bidirectional I/O port.
RF0/AN5 RF0 AN5 RF1/AN6/C2OUT RF1 AN6 C2OUT RF2/AN7/C1OUT RF2 AN7 C1OUT RF3/AN8 RF3 AN8 RF4/AN9 RF4 AN9 RF5/AN10/CVREF RF5 AN10 CVREF RF6/AN11 RF6 AN11 RF7/SS1 RF7 SS1
18 I/O I 17 I/O I O 16 I/O I O 15 I/O I 14 I/O I 13 I/O I O 12 I/O I 11 I/O I ST TTL Digital I/O. SPI slave select input. ST Analog Digital I/O. Analog input 11. ST Analog Analog Digital I/O. Analog input 10. Comparator reference voltage output. ST Analog Digital I/O. Analog input 9. ST Analog Digital I/O. Analog input 8. ST Analog -- Digital I/O. Analog input 7. Comparator 1 output. ST Analog -- Digital I/O. Analog input 6. Comparator 2 output. ST Analog Digital I/O. Analog input 5.
Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output ST = Schmitt Trigger input with CMOS levels Analog = Analog input I = Input O = Output = I2C/SMBus input buffer P = Power I2CTM Note 1: Default assignment for ECCP2 when Configuration bit, CCP2MX, is set. 2: Alternate assignment for ECCP2 when Configuration bit, CCP2MX, is cleared.
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 17
PIC18F8723 FAMILY
TABLE 1-2:
Pin Name
PIC18F6628/6723 (64-PIN) PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Number TQFP Pin Type Buffer Type Description PORTG is a bidirectional I/O port.
RG0/ECCP3/P3A RG0 ECCP3 P3A RG1/TX2/CK2 RG1 TX2 CK2 RG2/RX2/DT2 RG2 RX2 DT2 RG3/CCP4/P3D RG3 CCP4 P3D RG4/CCP5/P1D RG4 CCP5 P1D RG5 VSS VDD AVSS AVDD
3 I/O I/O O 4 I/O O I/O 5 I/O I I/O 6 I/O I/O O 8 I/O I/O O 9, 25, 41, 56 10, 26, 38, 57 20 19 P P P P ST ST -- -- -- -- -- Digital I/O. Capture 5 input/Compare 5 output/PWM5 output. ECCP1 PWM output D. See RG5/MCLR/VPP pin. Ground reference for logic and I/O pins. Positive supply for logic and I/O pins. Ground reference for analog modules. Positive supply for analog modules. ST ST -- Digital I/O. Capture 4 input/Compare 4 output/PWM4 output. ECCP3 PWM output D. ST ST ST Digital I/O. EUSART2 asynchronous receive. EUSART2 synchronous data (see related TX2/CK2). ST -- ST Digital I/O. EUSART2 asynchronous transmit. EUSART2 synchronous clock (see related RX2/DT2). ST ST -- Digital I/O. Enhanced Capture 3 input/Compare 3 output/ PWM3 output. ECCP3 PWM output A.
Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output ST = Schmitt Trigger input with CMOS levels Analog = Analog input I = Input O = Output = I2C/SMBus input buffer P = Power I2CTM Note 1: Default assignment for ECCP2 when Configuration bit, CCP2MX, is set. 2: Alternate assignment for ECCP2 when Configuration bit, CCP2MX, is cleared.
DS39894A-page 18
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723 FAMILY
TABLE 1-3:
Pin Name RG5/MCLR/VPP RG5 MCLR VPP OSC1/CLKI/RA7 OSC1 49 I
PIC18F8628/8723 (80-PIN) PINOUT I/O DESCRIPTIONS
Pin Number TQFP 9 I I P ST ST ST Pin Type Buffer Type Description Master Clear (input) or programming voltage (input). Digital input. Master Clear (Reset) input. This pin is an active-low Reset to the device. Programming voltage input.
CLKI
I
RA7 OSC2/CLKO/RA6 OSC2 CLKO 50
I/O O O
Oscillator crystal or external clock input. Oscillator crystal input or external clock source input. ST buffer when configured in RC mode, CMOS otherwise. CMOS External clock source input. Always associated with pin function OSC1. (See related OSC1/CLKI, OSC2/CLKO pins.) TTL General purpose I/O pin. -- -- Oscillator crystal or clock output. Oscillator crystal output. Connects to crystal or resonator in Crystal Oscillator mode. In RC mode, OSC2 pin outputs CLKO, which has 1/4 the frequency of OSC1 and denotes the instruction cycle rate. General purpose I/O pin.
RA6
I/O
TTL
Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output ST = Schmitt Trigger input with CMOS levels Analog = Analog input I = Input O = Output P = Power I2CTM/SMB = I2C/SMBus input buffer Note 1: Alternate assignment for ECCP2 when Configuration bit, CCP2MX, is cleared (all operating modes except Microcontroller mode). 2: Default assignment for ECCP2 in all operating modes (CCP2MX is set). 3: Alternate assignment for ECCP2 when CCP2MX is cleared (Microcontroller mode only). 4: Default assignment for P1B/P1C/P3B/P3C (ECCPMX is set). 5: Alternate assignment for P1B/P1C/P3B/P3C (ECCPMX is clear).
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 19
PIC18F8723 FAMILY
TABLE 1-3:
Pin Name
PIC18F8628/8723 (80-PIN) PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Number TQFP Pin Type Buffer Type Description PORTA is a bidirectional I/O port.
RA0/AN0 RA0 AN0 RA1/AN1 RA1 AN1 RA2/AN2/VREFRA2 AN2 VREFRA3/AN3/VREF+ RA3 AN3 VREF+ RA4/T0CKI RA4 T0CKI RA5/AN4/HLVDIN RA5 AN4 HLVDIN RA6 RA7
30 I/O I 29 I/O I 28 I/O I I 27 I/O I I 34 I/O I 33 I/O I I TTL Analog Analog Digital I/O. Analog input 4. High/Low-Voltage Detect input. See the OSC2/CLKO/RA6 pin. See the OSC1/CLKI/RA7 pin. ST ST Digital I/O. Timer0 external clock input. TTL Analog Analog Digital I/O. Analog input 3. A/D reference voltage (high) input. TTL Analog Analog Digital I/O. Analog input 2. A/D reference voltage (low) input. TTL Analog Digital I/O. Analog input 1. TTL Analog Digital I/O. Analog input 0.
Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output ST = Schmitt Trigger input with CMOS levels Analog = Analog input I = Input O = Output P = Power I2CTM/SMB = I2C/SMBus input buffer Note 1: Alternate assignment for ECCP2 when Configuration bit, CCP2MX, is cleared (all operating modes except Microcontroller mode). 2: Default assignment for ECCP2 in all operating modes (CCP2MX is set). 3: Alternate assignment for ECCP2 when CCP2MX is cleared (Microcontroller mode only). 4: Default assignment for P1B/P1C/P3B/P3C (ECCPMX is set). 5: Alternate assignment for P1B/P1C/P3B/P3C (ECCPMX is clear).
DS39894A-page 20
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723 FAMILY
TABLE 1-3:
Pin Name
PIC18F8628/8723 (80-PIN) PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Number TQFP Pin Type Buffer Type Description PORTB is a bidirectional I/O port. PORTB can be software programmed for internal weak pull-ups on all inputs.
RB0/INT0/FLT0 RB0 INT0 FLT0 RB1/INT1 RB1 INT1 RB2/INT2 RB2 INT2 RB3/INT3/ECCP2/P2A RB3 INT3 ECCP2(1) P2A(1) RB4/KBI0 RB4 KBI0 RB5/KBI1/PGM RB5 KBI1 PGM RB6/KBI2/PGC RB6 KBI2 PGC RB7/KBI3/PGD RB7 KBI3 PGD
58 I/O I I 57 I/O I 56 I/O I 55 I/O I O O 54 I/O I 53 I/O I I/O 52 I/O I I/O 47 I/O I I/O TTL TTL ST Digital I/O. Interrupt-on-change pin. In-Circuit Debugger and ICSP programming data pin. TTL TTL ST Digital I/O. Interrupt-on-change pin. In-Circuit Debugger and ICSPTM programming clock pin. TTL TTL ST Digital I/O. Interrupt-on-change pin. Low-Voltage ICSPTM Programming enable pin. TTL TTL Digital I/O. Interrupt-on-change pin. TTL ST -- -- Digital I/O. External interrupt 3. Enhanced Capture 2 input/Compare 2 output/ PWM2 output. ECCP2 PWM output A. TTL ST Digital I/O. External interrupt 2. TTL ST Digital I/O. External interrupt 1. TTL ST ST Digital I/O. External interrupt 0. PWM Fault input for ECCPx.
Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output ST = Schmitt Trigger input with CMOS levels Analog = Analog input I = Input O = Output P = Power I2CTM/SMB = I2C/SMBus input buffer Note 1: Alternate assignment for ECCP2 when Configuration bit, CCP2MX, is cleared (all operating modes except Microcontroller mode). 2: Default assignment for ECCP2 in all operating modes (CCP2MX is set). 3: Alternate assignment for ECCP2 when CCP2MX is cleared (Microcontroller mode only). 4: Default assignment for P1B/P1C/P3B/P3C (ECCPMX is set). 5: Alternate assignment for P1B/P1C/P3B/P3C (ECCPMX is clear).
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 21
PIC18F8723 FAMILY
TABLE 1-3:
Pin Name
PIC18F8628/8723 (80-PIN) PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Number TQFP Pin Type Buffer Type Description PORTC is a bidirectional I/O port.
RC0/T1OSO/T13CKI RC0 T1OSO T13CKI RC1/T1OSI/ECCP2/ P2A RC1 T1OSI ECCP2(2) P2A(2) RC2/ECCP1/P1A RC2 ECCP1 P1A RC3/SCK1/SCL1 RC3 SCK1 SCL1 RC4/SDI1/SDA1 RC4 SDI1 SDA1 RC5/SDO1 RC5 SDO1 RC6/TX1/CK1 RC6 TX1 CK1 RC7/RX1/DT1 RC7 RX1 DT1
36 I/O O I 35 I/O I I/O O 43 I/O I/O O 44 I/O I/O I/O 45 I/O I I/O 46 I/O O 37 I/O O I/O 38 I/O I I/O ST ST ST Digital I/O. EUSART1 asynchronous receive. EUSART1 synchronous data (see related TX1/CK1). ST -- ST Digital I/O. EUSART1 asynchronous transmit. EUSART1 synchronous clock (see related RX1/DT1). ST -- Digital I/O. SPI data out. ST ST ST Digital I/O. SPI data in. I2C data I/O. ST ST ST Digital I/O. Synchronous serial clock input/output for SPI mode. Synchronous serial clock input/output for I2CTM mode. ST ST -- Digital I/O. Enhanced Capture 1 input/Compare 1 output/ PWM1 output. ECCP1 PWM output A. ST CMOS ST -- Digital I/O. Timer1 oscillator input. Enhanced Capture 2 input/Compare 2 output/ PWM2 output. ECCP2 PWM output A. ST -- ST Digital I/O. Timer1 oscillator output. Timer1/Timer3 external clock input.
Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output ST = Schmitt Trigger input with CMOS levels Analog = Analog input I = Input O = Output P = Power I2CTM/SMB = I2C/SMBus input buffer Note 1: Alternate assignment for ECCP2 when Configuration bit, CCP2MX, is cleared (all operating modes except Microcontroller mode). 2: Default assignment for ECCP2 in all operating modes (CCP2MX is set). 3: Alternate assignment for ECCP2 when CCP2MX is cleared (Microcontroller mode only). 4: Default assignment for P1B/P1C/P3B/P3C (ECCPMX is set). 5: Alternate assignment for P1B/P1C/P3B/P3C (ECCPMX is clear).
DS39894A-page 22
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723 FAMILY
TABLE 1-3:
Pin Name
PIC18F8628/8723 (80-PIN) PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Number TQFP Pin Type Buffer Type Description PORTD is a bidirectional I/O port.
RD0/AD0/PSP0 RD0 AD0 PSP0 RD1/AD1/PSP1 RD1 AD1 PSP1 RD2/AD2/PSP2 RD2 AD2 PSP2 RD3/AD3/PSP3 RD3 AD3 PSP3 RD4/AD4/PSP4/SDO2 RD4 AD4 PSP4 SDO2 RD5/AD5/PSP5/ SDI2/SDA2 RD5 AD5 PSP5 SDI2 SDA2 RD6/AD6/PSP6/ SCK2/SCL2 RD6 AD6 PSP6 SCK2 SCL2 RD7/AD7/PSP7/SS2 RD7 AD7 PSP7 SS2
72 I/O I/O I/O 69 I/O I/O I/O 68 I/O I/O I/O 67 I/O I/O I/O 66 I/O I/O I/O O 65 I/O I/O I/O I I/O 64 I/O I/O I/O I/O I/O 63 I/O I/O I/O I ST TTL TTL TTL Digital I/O. External memory address/data 7. Parallel Slave Port data. SPI slave select input. ST TTL TTL ST I2C/SMB Digital I/O. External memory address/data 6. Parallel Slave Port data. Synchronous serial clock input/output for SPI mode. Synchronous serial clock input/output for I2C mode. ST TTL TTL ST I2C/SMB Digital I/O. External memory address/data 5. Parallel Slave Port data. SPI data in. I2CTM data I/O. ST TTL TTL -- Digital I/O. External memory address/data 4. Parallel Slave Port data. SPI data out. ST TTL TTL Digital I/O. External memory address/data 3. Parallel Slave Port data. ST TTL TTL Digital I/O. External memory address/data 2. Parallel Slave Port data. ST TTL TTL Digital I/O. External memory address/data 1. Parallel Slave Port data. ST TTL TTL Digital I/O. External memory address/data 0. Parallel Slave Port data.
Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output ST = Schmitt Trigger input with CMOS levels Analog = Analog input I = Input O = Output P = Power I2CTM/SMB = I2C/SMBus input buffer Note 1: Alternate assignment for ECCP2 when Configuration bit, CCP2MX, is cleared (all operating modes except Microcontroller mode). 2: Default assignment for ECCP2 in all operating modes (CCP2MX is set). 3: Alternate assignment for ECCP2 when CCP2MX is cleared (Microcontroller mode only). 4: Default assignment for P1B/P1C/P3B/P3C (ECCPMX is set). 5: Alternate assignment for P1B/P1C/P3B/P3C (ECCPMX is clear).
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 23
PIC18F8723 FAMILY
TABLE 1-3:
Pin Name
PIC18F8628/8723 (80-PIN) PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Number TQFP Pin Type Buffer Type Description PORTE is a bidirectional I/O port.
RE0/AD8/RD/P2D RE0 AD8 RD P2D RE1/AD9/WR/P2C RE1 AD9 WR P2C RE2/AD10/CS/P2B RE2 AD10 CS P2B RE3/AD11/P3C RE3 AD11 P3C(4) RE4/AD12/P3B RE4 AD12 P3B(4) RE5/AD13/P1C RE5 AD13 P1C(4) RE6/AD14/P1B RE6 AD14 P1B(4) RE7/AD15/ECCP2/ P2A RE7 AD15 ECCP2(3) P2A(3)
4 I/O I/O I O 3 I/O I/O I O 78 I/O I/O I O 77 I/O I/O O 76 I/O I/O O 75 I/O I/O O 74 I/O I/O O 73 I/O I/O I/O O ST TTL ST -- Digital I/O. External memory address/data 15. Enhanced Capture 2 input/Compare 2 output/ PWM2 output. ECCP2 PWM output A. ST TTL -- Digital I/O. External memory address/data 14. ECCP1 PWM output B. ST TTL -- Digital I/O. External memory address/data 13. ECCP1 PWM output C. ST TTL -- Digital I/O. External memory address/data 12. ECCP3 PWM output B. ST TTL -- Digital I/O. External memory address/data 11. ECCP3 PWM output C. ST TTL TTL -- Digital I/O. External memory address/data 10. Chip select control for Parallel Slave Port. ECCP2 PWM output B. ST TTL TTL -- Digital I/O. External memory address/data 9. Write control for Parallel Slave Port. ECCP2 PWM output C. ST TTL TTL -- Digital I/O. External memory address/data 8. Read control for Parallel Slave Port. ECCP2 PWM output D.
Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output ST = Schmitt Trigger input with CMOS levels Analog = Analog input I = Input O = Output P = Power I2CTM/SMB = I2C/SMBus input buffer Note 1: Alternate assignment for ECCP2 when Configuration bit, CCP2MX, is cleared (all operating modes except Microcontroller mode). 2: Default assignment for ECCP2 in all operating modes (CCP2MX is set). 3: Alternate assignment for ECCP2 when CCP2MX is cleared (Microcontroller mode only). 4: Default assignment for P1B/P1C/P3B/P3C (ECCPMX is set). 5: Alternate assignment for P1B/P1C/P3B/P3C (ECCPMX is clear).
DS39894A-page 24
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723 FAMILY
TABLE 1-3:
Pin Name
PIC18F8628/8723 (80-PIN) PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Number TQFP Pin Type Buffer Type Description PORTF is a bidirectional I/O port.
RF0/AN5 RF0 AN5 RF1/AN6/C2OUT RF1 AN6 C2OUT RF2/AN7/C1OUT RF2 AN7 C1OUT RF3/AN8 RF3 AN8 RF4/AN9 RF4 AN9 RF5/AN10/CVREF RF5 AN10 CVREF RF6/AN11 RF6 AN11 RF7/SS1 RF7 SS1
24 I/O I 23 I/O I O 18 I/O I O 17 I/O I 16 I/O I 15 I/O I O 14 I/O I 13 I/O I ST TTL Digital I/O. SPI slave select input. ST Analog Digital I/O. Analog input 11. ST Analog Analog Digital I/O. Analog input 10. Comparator reference voltage output. ST Analog Digital I/O. Analog input 9. ST Analog Digital I/O. Analog input 8. ST Analog -- Digital I/O. Analog input 7. Comparator 1 output. ST Analog -- Digital I/O. Analog input 6. Comparator 2 output. ST Analog Digital I/O. Analog input 5.
Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output ST = Schmitt Trigger input with CMOS levels Analog = Analog input I = Input O = Output P = Power I2CTM/SMB = I2C/SMBus input buffer Note 1: Alternate assignment for ECCP2 when Configuration bit, CCP2MX, is cleared (all operating modes except Microcontroller mode). 2: Default assignment for ECCP2 in all operating modes (CCP2MX is set). 3: Alternate assignment for ECCP2 when CCP2MX is cleared (Microcontroller mode only). 4: Default assignment for P1B/P1C/P3B/P3C (ECCPMX is set). 5: Alternate assignment for P1B/P1C/P3B/P3C (ECCPMX is clear).
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 25
PIC18F8723 FAMILY
TABLE 1-3:
Pin Name
PIC18F8628/8723 (80-PIN) PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Number TQFP Pin Type Buffer Type Description PORTG is a bidirectional I/O port.
RG0/ECCP3/P3A RG0 ECCP3 P3A RG1/TX2/CK2 RG1 TX2 CK2 RG2/RX2/DT2 RG2 RX2 DT2 RG3/CCP4/P3D RG3 CCP4 P3D RG4/CCP5/P1D RG4 CCP5 P1D RG5
5 I/O I/O O 6 I/O O I/O 7 I/O I I/O 8 I/O I/O O 10 I/O I/O O ST ST -- Digital I/O. Capture 5 input/Compare 5 output/PWM5 output. ECCP1 PWM output D. See RG5/MCLR/VPP pin. ST ST -- Digital I/O. Capture 4 input/Compare 4 output/PWM4 output. ECCP3 PWM output D. ST ST ST Digital I/O. EUSART2 asynchronous receive. EUSART2 synchronous data (see related TX2/CK2). ST -- ST Digital I/O. EUSART2 asynchronous transmit. EUSART2 synchronous clock (see related RX2/DT2). ST ST -- Digital I/O. Enhanced Capture 3 input/Compare 3 output/ PWM3 output. ECCP3 PWM output A.
Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output ST = Schmitt Trigger input with CMOS levels Analog = Analog input I = Input O = Output P = Power I2CTM/SMB = I2C/SMBus input buffer Note 1: Alternate assignment for ECCP2 when Configuration bit, CCP2MX, is cleared (all operating modes except Microcontroller mode). 2: Default assignment for ECCP2 in all operating modes (CCP2MX is set). 3: Alternate assignment for ECCP2 when CCP2MX is cleared (Microcontroller mode only). 4: Default assignment for P1B/P1C/P3B/P3C (ECCPMX is set). 5: Alternate assignment for P1B/P1C/P3B/P3C (ECCPMX is clear).
DS39894A-page 26
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723 FAMILY
TABLE 1-3:
Pin Name
PIC18F8628/8723 (80-PIN) PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Number TQFP Pin Type Buffer Type Description PORTH is a bidirectional I/O port.
RH0/A16 RH0 A16 RH1/A17 RH1 A17 RH2/A18 RH2 A18 RH3/A19 RH3 A19 RH4/AN12/P3C RH4 AN12 P3C(5) RH5/AN13/P3B RH5 AN13 P3B(5) RH6/AN14/P1C RH6 AN14 P1C(5) RH7/AN15/P1B RH7 AN15 P1B(5)
79 I/O I/O 80 I/O I/O 1 I/O I/O 2 I/O I/O 22 I/O I O 21 I/O I O 20 I/O I O 19 I/O I O ST Analog -- Digital I/O. Analog input 15. ECCP1 PWM output B. ST Analog -- Digital I/O. Analog input 14. ECCP1 PWM output C. ST Analog -- Digital I/O. Analog input 13. ECCP3 PWM output B. ST Analog -- Digital I/O. Analog input 12. ECCP3 PWM output C. ST TTL Digital I/O. External memory address/data 19. ST TTL Digital I/O. External memory address/data 18. ST TTL Digital I/O. External memory address/data 17. ST TTL Digital I/O. External memory address/data 16.
Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output ST = Schmitt Trigger input with CMOS levels Analog = Analog input I = Input O = Output P = Power I2CTM/SMB = I2C/SMBus input buffer Note 1: Alternate assignment for ECCP2 when Configuration bit, CCP2MX, is cleared (all operating modes except Microcontroller mode). 2: Default assignment for ECCP2 in all operating modes (CCP2MX is set). 3: Alternate assignment for ECCP2 when CCP2MX is cleared (Microcontroller mode only). 4: Default assignment for P1B/P1C/P3B/P3C (ECCPMX is set). 5: Alternate assignment for P1B/P1C/P3B/P3C (ECCPMX is clear).
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 27
PIC18F8723 FAMILY
TABLE 1-3:
Pin Name
PIC18F8628/8723 (80-PIN) PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Number TQFP Pin Type Buffer Type Description PORTJ is a bidirectional I/O port.
RJ0/ALE RJ0 ALE RJ1/OE RJ1 OE RJ2/WRL RJ2 WRL RJ3/WRH RJ3 WRH RJ4/BA0 RJ4 BA0 RJ5/CE RJ4 CE RJ6/LB RJ6 LB RJ7/UB RJ7 UB VSS VDD AVSS AVDD
62 I/O O 61 I/O O 60 I/O O 59 I/O O 39 I/O O 40 I/O O 41 I/O O 42 I/O O 11, 31, 51, 70 12, 32, 48, 71 26 25 P P P P ST -- -- -- -- -- Digital I/O. External memory high byte control. Ground reference for logic and I/O pins. Positive supply for logic and I/O pins. Ground reference for analog modules. Positive supply for analog modules. ST -- Digital I/O. External memory low byte control. ST -- Digital I/O External memory chip enable control. ST -- Digital I/O. External memory byte address 0 control. ST -- Digital I/O. External memory write high control. ST -- Digital I/O. External memory write low control. ST -- Digital I/O. External memory output enable. ST -- Digital I/O. External memory address latch enable.
Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output ST = Schmitt Trigger input with CMOS levels Analog = Analog input I = Input O = Output P = Power I2CTM/SMB = I2C/SMBus input buffer Note 1: Alternate assignment for ECCP2 when Configuration bit, CCP2MX, is cleared (all operating modes except Microcontroller mode). 2: Default assignment for ECCP2 in all operating modes (CCP2MX is set). 3: Alternate assignment for ECCP2 when CCP2MX is cleared (Microcontroller mode only). 4: Default assignment for P1B/P1C/P3B/P3C (ECCPMX is set). 5: Alternate assignment for P1B/P1C/P3B/P3C (ECCPMX is clear).
DS39894A-page 28
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723 FAMILY
2.0 12-BIT ANALOG-TO-DIGITAL CONVERTER (A/D) MODULE
The ADCON0 register, shown in Register 2-1, controls the operation of the A/D module. The ADCON1 register, shown in Register 2-2, configures the functions of the port pins. The ADCON2 register, shown in Register 2-3, configures the A/D clock source, programmed acquisition time and justification.
The Analog-to-Digital (A/D) Converter module has 12 inputs for the 64-pin devices (PIC18F6628/6723) and 16 for the 80-pin devices (PIC18F8628/8723). This module allows conversion of an analog input signal to a corresponding 12-bit digital number. The module has five registers: * * * * * A/D Result High Register (ADRESH) A/D Result Low Register (ADRESL) A/D Control Register 0 (ADCON0) A/D Control Register 1 (ADCON1) A/D Control Register 2 (ADCON2)
REGISTER 2-1:
U-0 -- bit 7 Legend: R = Readable bit -n = Value at POR bit 7-6 bit 5-2
ADCON0: A/D CONTROL REGISTER 0
U-0 -- R/W-0 CHS3 R/W-0 CHS2 R/W-0 CHS1 R/W-0 CHS0 R/W-0 GO/DONE R/W-0 ADON bit 0
W = Writable bit `1' = Bit is set
U = Unimplemented bit, read as `0' `0' = Bit is cleared x = Bit is unknown
Unimplemented: Read as `0' CHS3:CHS0: Analog Channel Select bits 0000 = Channel 0 (AN0) 0001 = Channel 1 (AN1) 0010 = Channel 2 (AN2) 0011 = Channel 3 (AN3) 0100 = Channel 4 (AN4) 0101 = Channel 5 (AN5) 0110 = Channel 6 (AN6) 0111 = Channel 7 (AN7) 1000 = Channel 8 (AN8) 1001 = Channel 9 (AN9) 1010 = Channel 10 (AN10) 1011 = Channel 11 (AN11) 1100 = Channel 12 (AN12)(1,2) 1101 = Channel 13 (AN13)(1,2) 1110 = Channel 14 (AN14)(1,2) 1111 = Channel 15 (AN15)(1,2) GO/DONE: A/D Conversion Status bit When ADON = 1: 1 = A/D conversion in progress 0 = A/D Idle ADON: A/D On bit 1 = A/D Converter module is enabled 0 = A/D Converter module is disabled These channels are not implemented on PIC18F6628/6723 devices. Performing a conversion on unimplemented channels will return a floating input measurement.
bit 1
bit 0
Note 1: 2:
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 29
PIC18F8723 FAMILY
REGISTER 2-2:
U-0 -- bit 7 Legend: R = Readable bit -n = Value at POR bit 7-6 bit 5-4 W = Writable bit `1' = Bit is set U = Unimplemented bit, read as `0' `0' = Bit is cleared x = Bit is unknown
ADCON1: A/D CONTROL REGISTER 1
U-0 -- R/W-0 VCFG1 R/W-0 VCFG0 R/W-0 PCFG3 R/W-0 PCFG2 R/W-0 PCFG1 R/W-0 PCFG0 bit 0
Unimplemented: Read as `0' VCFG1:VCFG0: Voltage Reference Configuration bits
A/D VREF+ 00 01 10 11 AVDD External VREF+ AVDD External VREF+ A/D VREFAVSS AVSS External VREFExternal VREF-
bit 3-0
PCFG3:PCFG0: A/D Port Configuration Control bits:
AN15(1) AN14(1) AN13(1) AN12(1) AN9 AN8 AN7 AN6 AN5 AN4 AN3 AN2 AN1 A A A A A A A A A A A A A A D D AN0 A A A A A A A A A A A A A A A D PCFG<3:0> 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 AN10 A A A A A D D D D D D D D D D D AN11 A A A A D D D D D D D D D D D D
A D D D D D D D D D D D D D D D
A D D D D D D D D D D D D D D D
A A D D D D D D D D D D D D D D
A A A D D D D D D D D D D D D D
A A A A A A D D D D D D D D D D
A A A A A A A D D D D D D D D D
A A A A A A A A D D D D D D D D
A A A A A A A A A D D D D D D D
A A A A A A A A A A D D D D D D
A A A A A A A A A A A D D D D D
A A A A A A A A A A A A D D D D
A A A A A A A A A A A A A D D D
A = Analog input Note 1:
D = Digital I/O
AN15 through AN12 are available only on PIC18F8628/8723 devices.
DS39894A-page 30
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723 FAMILY
REGISTER 2-3:
R/W-0 ADFM bit 7 Legend: R = Readable bit -n = Value at POR bit 7 W = Writable bit `1' = Bit is set U = Unimplemented bit, read as `0' `0' = Bit is cleared x = Bit is unknown
ADCON2: A/D CONTROL REGISTER 2
U-0 -- R/W-0 ACQT2 R/W-0 ACQT1 R/W-0 ACQT0 R/W-0 ADCS2 R/W-0 ADCS1 R/W-0 ADCS0 bit 0
ADFM: A/D Result Format Select bit 1 = Right justified 0 = Left justified Unimplemented: Read as `0' ACQT2:ACQT0: A/D Acquisition Time Select bits 111 = 20 TAD 110 = 16 TAD 101 = 12 TAD 100 = 8 TAD 011 = 6 TAD 010 = 4 TAD 001 = 2 TAD 000 = 0 TAD(1) ADCS2:ADCS0: A/D Conversion Clock Select bits 111 = FRC (clock derived from A/D RC oscillator)(1) 110 = FOSC/64 101 = FOSC/16 100 = FOSC/4 011 = FRC (clock derived from A/D RC oscillator)(1) 010 = FOSC/32 001 = FOSC/8 000 = FOSC/2 If the A/D FRC clock source is selected, a delay of one TCY (instruction cycle) is added before the A/D clock starts. This allows the SLEEP instruction to be executed before starting a conversion.
bit 6 bit 5-3
bit 2-0
Note 1:
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 31
PIC18F8723 FAMILY
The analog reference voltage is software selectable to either the device's positive and negative supply voltage (VDD and VSS), or the voltage level on the RA3/AN3/ VREF+ and RA2/AN2/VREF-/CVREF pins. The A/D Converter has a unique feature of being able to operate while the device is in Sleep mode. To operate in Sleep, the A/D conversion clock must be derived from the A/D's internal RC oscillator. The output of the sample and hold is the input into the converter, which generates the result via successive approximation. A device Reset forces all registers to their Reset state. This forces the A/D module to be turned off and any conversion in progress is aborted. Each port pin associated with the A/D Converter can be configured as an analog input or a digital I/O. The ADRESH and ADRESL registers contain the result of the A/D conversion. When the A/D conversion is complete, the result is loaded into the ADRESH:ADRESL register pair, the GO/DONE bit (ADCON0<1>) is cleared and the A/D Interrupt Flag bit, ADIF, is set. The block diagram of the A/D module is shown in Figure 2-1.
FIGURE 2-1:
A/D BLOCK DIAGRAM
CHS3:CHS0 1111 1110 1101 1100 1011 1010 1001 1000 0111 0110 0101 0100 VAIN AN15(1) AN14(1) AN13(1) AN12(1) AN11 AN10 AN9 AN8 AN7 AN6 AN5 AN4 AN3 AN2 AN1 AN0
12-Bit A/D Converter
(Input Voltage)
0011 0010
VCFG1:VCFG0 AVDD Reference Voltage VREF+ VREFX0 X1 (2)
0001 0000
1X 0X AVSS(2)
Note 1: 2:
Channels AN12 through AN15 are not available on PIC18F6628/6723 devices. I/O pins have diode protection to VDD and VSS.
DS39894A-page 32
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723 FAMILY
The value in the ADRESH:ADRESL registers is unknown following Power-on and Brown-out Resets and is not affected by any other Reset. After the A/D module has been configured as desired, the selected channel must be acquired before the conversion is started. The analog input channels must have their corresponding TRIS bits selected as an input. To determine acquisition time, see Section 2.1 "A/D Acquisition Requirements". After this acquisition time has elapsed, the A/D conversion can be started. An acquisition time can be programmed to occur between setting the GO/DONE bit and the actual start of the conversion. The following steps should be followed to perform an A/D conversion: 1. Configure the A/D module: * Configure analog pins, voltage reference and digital I/O (ADCON1) * Select A/D input channel (ADCON0) * Select A/D acquisition time (ADCON2) * Select A/D conversion clock (ADCON2) * Turn on A/D module (ADCON0) Configure A/D interrupt (if desired): * Clear ADIF bit * Set ADIE bit * Set GIE bit Wait the required acquisition time (if required). Start conversion: * Set GO/DONE bit (ADCON0<1>) 5. Wait for A/D conversion to complete by either: * Polling for the GO/DONE bit to be cleared OR 6. 7. * Waiting for the A/D interrupt Read A/D Result registers (ADRESH:ADRESL); clear bit, ADIF, if required. For next conversion, go to step 1 or step 2, as required. The A/D conversion time per bit is defined as TAD. A minimum wait of 2 TAD is required before the next acquisition starts.
FIGURE 2-2:
FFFh FFEh Digital Code Output
A/D TRANSFER FUNCTION
003h 002h 001h 000h 1 LSB 0.5 LSB 1.5 LSB 2 LSB 2.5 LSB 3 LSB 4094 LSB 4095 LSB 4094.5 LSB 4095.5 LSB
2.
3. 4.
Analog Input Voltage
FIGURE 2-3:
ANALOG INPUT MODEL
VDD VT = 0.6V RIC 1k Sampling Switch SS RSS
Rs
ANx
VAIN
CPIN 5 pF
VT = 0.6V
ILEAKAGE 100 nA
CHOLD = 25 pF
VSS
Legend: CPIN = Input Capacitance VT = Threshold Voltage ILEAKAGE = Leakage Current at the pin due to various junctions = Interconnect Resistance RIC = Sampling Switch SS = Sample/Hold Capacitance (from DAC) CHOLD RSS = Sampling Switch Resistance
6V 5V VDD 4V 3V 2V 1 23 4 Sampling Switch (k)
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 33
PIC18F8723 FAMILY
2.1 A/D Acquisition Requirements
For the A/D Converter to meet its specified accuracy, the charge holding capacitor (CHOLD) must be allowed to fully charge to the input channel voltage level. The analog input model is shown in Figure 2-3. The source impedance (RS) and the internal sampling switch (RSS) impedance directly affect the time required to charge the capacitor, CHOLD. The sampling switch (RSS) impedance varies over the device voltage (VDD). The source impedance affects the offset voltage at the analog input (due to pin leakage current). The maximum recommended impedance for analog sources is 2.5 k. After the analog input channel is selected (changed), the channel must be sampled for at least the minimum acquisition time before starting a conversion. Note: When the conversion is started, the holding capacitor is disconnected from the input pin. To calculate the minimum acquisition time, Equation 2-1 may be used. This equation assumes that 1/2 LSb error is used (4096 steps for the 12-bit A/D). The 1/2 LSb error is the maximum error allowed for the A/D to meet its specified resolution. Example 2-3 shows the calculation of the minimum required acquisition time, TACQ. This calculation is based on the following application system assumptions: CHOLD Rs Conversion Error VDD Temperature = = = = 25 pF 2.5 k 1/2 LSb 3V Rss = 4 k 85C (system max.)
EQUATION 2-1:
TACQ = =
ACQUISITION TIME
Amplifier Settling Time + Holding Capacitor Charging Time + Temperature Coefficient TAMP + TC + TCOFF
EQUATION 2-2:
VHOLD or TC = =
A/D MINIMUM CHARGING TIME
(VREF - (VREF/4096)) * (1 - e(-TC/CHOLD(RIC + RSS + RS))) - (CHOLD)(RIC + RSS + RS) ln(1/4096)
EQUATION 2-3:
TACQ TAMP TCOFF = = = 0.2 s
CALCULATING THE MINIMUM REQUIRED ACQUISITION TIME
TAMP + TC + TCOFF (Temp - 25C)(0.02 s/C) (85C - 25C)(0.02 s/C) 1.2 s -(CHOLD)(RIC + RSS + RS) ln(1/4096) s -(25 pF) (1 k + 4 k + 2.5 k) ln(0.0002441) s 1.56 s 0.2 s + 1.56 s + 1.2 s 2.96 s
Temperature coefficient is only required for temperatures > 25C. Below 25C, TCOFF = 0 s. TC =
TACQ
=
DS39894A-page 34
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723 FAMILY
2.2 Selecting and Configuring Acquisition Time 2.3 Selecting the A/D Conversion Clock
The ADCON2 register allows the user to select an acquisition time that occurs each time the GO/DONE bit is set. It also gives users the option to use an automatically determined acquisition time. Acquisition time may be set with the ACQT2:ACQT0 bits (ADCON2<5:3>), which provide a range of 2 to 20 TAD. When the GO/DONE bit is set, the A/D module continues to sample the input for the selected acquisition time, then automatically begins a conversion. Since the acquisition time is programmed, there may be no need to wait for an acquisition time between selecting a channel and setting the GO/DONE bit. Manual acquisition is selected when ACQT2:ACQT0 = 000. When the GO/DONE bit is set, sampling is stopped and a conversion begins. The user is responsible for ensuring the required acquisition time has passed between selecting the desired input channel and setting the GO/DONE bit. This option is also the default Reset state of the ACQT2:ACQT0 bits and is compatible with devices that do not offer programmable acquisition times. In either case, when the conversion is completed, the GO/DONE bit is cleared, the ADIF flag is set and the A/D begins sampling the currently selected channel again. If an acquisition time is programmed, there is nothing to indicate if the acquisition time has ended or if the conversion has begun.
The A/D conversion time per bit is defined as TAD. The A/D conversion requires 13 TAD per 12-bit conversion. The source of the A/D conversion clock is software selectable. There are seven possible options for TAD: * * * * * * * 2 TOSC 4 TOSC 8 TOSC 16 TOSC 32 TOSC 64 TOSC Internal RC Oscillator
For correct A/D conversions, the A/D conversion clock (TAD) must be as short as possible, but greater than the minimum TAD (see parameter 130 for more information). Table 2-1 shows the resultant TAD times derived from the device operating frequencies and the A/D clock source selected.
TABLE 2-1:
TAD vs. DEVICE OPERATING FREQUENCIES
A/D Clock Source (TAD) Operation 2 TOSC 4 TOSC 8 TOSC 16 TOSC 32 TOSC 64 TOSC RC(1) ADCS2:ADCS0 000 100 001 101 010 110 x11 Assumes TAD Min. = 0.8 s Maximum FOSC 2.50 MHz 5.00 MHz 10.00 MHz 20.00 MHz 40.00 MHz 40.00 MHz 1.00 MHz(2)
Note 1: 2:
The RC source has a typical TAD time of 2.5 s. For device frequencies above 1 MHz, the device must be in Sleep for the entire conversion or a FOSC divider should be used instead; otherwise, the A/D accuracy specification may not be met.
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 35
PIC18F8723 FAMILY
2.4 Operation in Power-Managed Modes 2.5 Configuring Analog Port Pins
The ADCON1, TRISA, TRISF and TRISH registers all configure the A/D port pins. The port pins needed as analog inputs must have their corresponding TRIS bits set (input). If the TRIS bit is cleared (output), the digital output level (VOH or VOL) will be converted. The A/D operation is independent of the state of the CHS3:CHS0 bits and the TRIS bits. Note 1: When reading the PORT register, all pins configured as analog input channels will read as cleared (a low level). Analog conversion on pins configured as digital pins can be performed. The voltage on the pin will be accurately converted. 2: Analog levels on any pin defined as a digital input may cause the digital input buffer to consume current out of the device's specification limits.
The selection of the automatic acquisition time and A/D conversion clock is determined in part by the clock source and frequency while in a power-managed mode. If the A/D is expected to operate while the device is in a power-managed mode, the ADCS2:ADCS0 bits in ADCON2 should be updated in accordance with the clock source to be used. The ACQT2:ACQT0 bits do not need to be adjusted as the ADCS2:ADCS0 bits adjust the TAD time for the new clock speed. After entering the mode, an A/D acquisition or conversion may be started. Once started, the device should continue to be clocked by the same clock source until the conversion has been completed. If desired, the device may be placed into the corresponding Idle mode during the conversion. If the device clock frequency is less than 1 MHz, the A/D RC clock source should be selected. Operation in Sleep mode requires the A/D FRC clock to be selected. If the ACQT2:ACQT0 bits are set to `000' and a conversion is started, the conversion will be delayed one instruction cycle to allow execution of the SLEEP instruction and entry to Sleep mode. The IDLEN bit (OSCCON<7>) must have already been cleared prior to starting the conversion.
DS39894A-page 36
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723 FAMILY
2.6 A/D Conversions
Figure 2-4 shows the operation of the A/D Converter after the GO/DONE bit has been set and the ACQT2:ACQT0 bits are cleared. A conversion is started after the following instruction to allow entry into Sleep mode before the conversion begins. Figure 2-5 shows the operation of the A/D Converter after the GO/DONE bit has been set, the ACQT2:ACQT0 bits are set to `010' and a 4 TAD acquisition time has been selected before the conversion starts. Clearing the GO/DONE bit during a conversion will abort the current conversion. The A/D Result register pair will NOT be updated with the partially completed A/D conversion sample. This means the ADRESH:ADRESL registers will continue to contain the value of the last completed conversion (or the last value written to the ADRESH:ADRESL registers). After the A/D conversion is completed or aborted, a 2 TCY wait is required before the next acquisition can be started. After this wait, acquisition on the selected channel is automatically started. Note: The GO/DONE bit should NOT be set in the same instruction that turns on the A/D. Code should wait at least 2 s after enabling the A/D before beginning an acquisition and conversion cycle.
2.7
Discharge
The discharge phase is used to initialize the value of the holding capacitor. The array is discharged before every sample. This feature helps to optimize the unity gain amplifier, as the circuit always needs to charge the capacitor array, rather than charge/discharge based on previous measure values.
FIGURE 2-4:
A/D CONVERSION TAD CYCLES (ACQT<2:0> = 000, TACQ = 0)
b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0 Discharge (typically 200 ns)
TCY - TAD TAD1 TAD2 TAD3 TAD4 TAD5 TAD6 TAD7 TAD8 TAD9 TAD10 TAD11 TAD12 TAD13 TAD1
Conversion starts Holding capacitor is disconnected from analog input (typically 100 ns) Set GO/DONE bit
On the following cycle: ADRESH:ADRESL are loaded, GO/DONE bit is cleared, ADIF bit is set, holding capacitor is connected to analog input
FIGURE 2-5:
A/D CONVERSION TAD CYCLES (ACQT<2:0> = 010, TACQ = 4 TAD)
TAD Cycles 4 1 2 b11 3 b10 4 b9 5 b8 6 b7 7 b6 8 b5 9 b4 10 b3 11 b2 12 b1 13 b0 TAD1 Discharge (typically 200 ns)
TACQT Cycles 1 2 3
Automatic Acquisition Time
Conversion starts (Holding capacitor is disconnected)
Set GO/DONE bit (Holding capacitor continues acquiring input)
On the following cycle: ADRESH:ADRESL are loaded, GO/DONE bit is cleared, ADIF bit is set, holding capacitor is connected to analog input
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 37
PIC18F8723 FAMILY
2.8 Use of the ECCP2 Trigger
An A/D conversion can be started by the Special Event Trigger of the ECCP2 module. This requires that the CCP2M3:CCP2M0 bits (CCP2CON<3:0>) be programmed as `1011' and that the A/D module is enabled (ADON bit is set). When the trigger occurs, the GO/DONE bit will be set, starting the A/D acquisition and conversion, and the Timer1 (or Timer3) counter will be reset to zero. Timer1 (or Timer3) is reset to automatically repeat the A/D acquisition period with minimal software overhead (moving ADRESH:ADRESL to the desired location). The appropriate analog input channel must be selected and the minimum acquisition period is either timed by the user, or an appropriate TACQ time selected before the Special Event Trigger sets the GO/DONE bit (starts a conversion). If the A/D module is not enabled (ADON is cleared), the Special Event Trigger will be ignored by the A/D module but will still reset the Timer1 (or Timer3) counter.
TABLE 2-2:
Name INTCON PIR1 PIE1 IPR1 PIR2 PIE2 IPR2 ADRESH ADRESL ADCON0 ADCON1 ADCON2 TRISA TRISF TRISH(2)
REGISTERS ASSOCIATED WITH A/D OPERATION
Bit 7 Bit 6 Bit 5 TMR0IE RC1IF RC1IE RC1IP -- -- -- Bit 4 INT0IE TX1IF TX1IE TX1IP EEIF EEIE EEIP Bit 3 RBIE SSP1IF SSP1IE SSP1IP BCL1IF BCL1IE BCL1IP Bit 2 TMR0IF CCP1IF CCP1IE CCP1IP HLVDIF HLVDIE HLVDIP Bit 1 INT0IF TMR2IF TMR2IE TMR2IP TMR3IF TMR3IE TMR3IP Bit 0 RBIF TMR1IF TMR1IE TMR1IP CCP2IF CCP2IE CCP2IP Reset Values
(3) (3) (3) (3) (3) (3) (3) (3) (3)
GIE/GIEH PEIE/GIEL PSPIF PSPIE PSPIP OSCFIF OSCFIE OSCFIP ADIF ADIE ADIP CMIF CMIE CMIP
A/D Result Register High Byte A/D Result Register Low Byte -- -- ADFM TRISA7(1) TRISF7 TRISH7 -- -- -- TRISA6(1) TRISF6 TRISH6 CHS3 VCFG1 ACQT2 TRISA5 TRISF5 TRISH5 CHS2 VCFG0 ACQT1 TRISA4 TRISF4 TRISH4 CHS1 PCFG3 ACQT0 TRISA3 TRISF3 TRISH3 CHS0 PCFG2 ADCS2 TRISA2 TRISF2 TRISH2 GO/DONE PCFG1 ADCS1 TRISA1 TRISF1 TRISH1 ADON PCFG0 ADCS0 TRISA0 TRISF0 TRISH0
(3) (3) (3) (3) (3) (3)
Legend: -- = unimplemented, read as `0'. Shaded cells are not used for A/D conversion. Note 1: PORTA<7:6> and their direction bits are individually configured as port pins based on various primary oscillator modes. When disabled, these bits read as `0'. 2: These registers are not implemented on PIC18F6628/6723 devices. 3: For these Reset values, see the "PIC18F8722 Family Data Sheet" (DS39646).
DS39894A-page 38
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723 FAMILY
3.0
Note:
SPECIAL FEATURES OF THE CPU
For additional details on the Configuration bits, refer to Section 25.1 "Configuration Bits" in the "PIC18F8722 Family Data Sheet" (DS39646). Device ID information presented in this section is for the PIC18F8723 family only.
3.1
Device ID Registers
The Device ID registers are "read-only" registers. They identify the device type and revision to device programmers and can be read by firmware using table reads.
PIC18F8723 family devices include several features intended to maximize reliability and minimize cost through elimination of external components. These include: * Device ID Registers
TABLE 3-1:
File Name
DEVICE IDs
Bit 7 DEV2 DEV10 Bit 6 DEV1 DEV9 Bit 5 DEV0 DEV8 Bit 4 REV4 DEV7 Bit 3 REV3 DEV6 Bit 2 REV2 DEV5 Bit 1 REV1 DEV4 Bit 0 REV0 DEV3 Default/ Unprogrammed Value xxxx xxxx(1) xxxx xxxx(1)
3FFFFEh DEVID1 3FFFFFh Legend: Note 1: DEVID2
x = unknown See Register 3-1 and Register 3-2 for DEVID values. DEVID registers are read-only and cannot be programmed by the user.
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 39
PIC18F8723 FAMILY
REGISTER 3-1:
R DEV2 bit 7 Legend: R = Read-only bit P = Programmable bit U = Unimplemented bit, read as `0' u = Unchanged from programmed state -n = Value when device is unprogrammed bit 7-5 bit 4-0 DEV2:DEV0: Device ID bits See Register 3-2 for a complete listing. REV4:REV0: Revision ID bits These bits are used to indicate the device revision.
DEVID1: DEVICE ID REGISTER 1 FOR PIC18F8723 FAMILY DEVICES
R DEV1 R DEV0 R REV4 R REV3 R REV2 R REV1 R REV0 bit 0
REGISTER 3-2:
R DEV10 bit 7 Legend: R = Read-only bit
DEVID2: DEVICE ID REGISTER 2 FOR PIC18F8723 FAMILY DEVICES
R DEV9 R DEV8 R DEV7 R DEV6 R DEV5 R DEV4 R DEV3 bit 0
P = Programmable bit
U = Unimplemented bit, read as `0' u = Unchanged from programmed state
-n = Value when device is unprogrammed bit 7-0 DEV10:DEV3: Device ID bits DEV10:DEV3 (DEVID2<7:0>) 0100 1001 0100 1010 0100 1001 0100 1010
DEV2:DEV0 (DEVID1<7:5>) 110 000 111 001
Device PIC18F6628 PIC18F6723 PIC18F8628 PIC18F8723
DS39894A-page 40
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723 FAMILY
4.0 ELECTRICAL CHARACTERISTICS
Note: Other than some basic data, this section documents only the PIC18F8723 family's specifications that differ from those of the PIC18F8722 family devices. For detailed information on the electrical specifications shared by the PIC18F8723 family and PIC18F8722 family devices, see the "PIC18F8722 Family Data Sheet" (DS39646).
Absolute Maximum Ratings()
Ambient temperature under bias.............................................................................................................-40C to +125C Storage temperature .............................................................................................................................. -65C to +150C Voltage on any pin with respect to VSS (except VDD and MCLR) ................................................... -0.3V to (VDD + 0.3V) Voltage on VDD with respect to VSS ......................................................................................................... -0.3V to +7.5V Voltage on MCLR with respect to VSS (Note 2) ......................................................................................... 0V to +13.25V Total power dissipation (Note 1) ...............................................................................................................................1.0W Maximum current out of VSS pin ...........................................................................................................................300 mA Maximum current into VDD pin ..............................................................................................................................250 mA Input clamp current, IIK (VI < 0 or VI > VDD)...................................................................................................................... 20 mA Output clamp current, IOK (VO < 0 or VO > VDD) .............................................................................................................. 20 mA Maximum output current sunk by any I/O pin..........................................................................................................25 mA Maximum output current sourced by any I/O pin ....................................................................................................25 mA Maximum current sunk by all ports .......................................................................................................................200 mA Maximum current sourced by all ports ..................................................................................................................200 mA Note 1: Power dissipation is calculated as follows: Pdis = VDD x {IDD - IOH} + {(VDD - VOH) x IOH} + (VOL x IOL) 2: Voltage spikes below VSS at the RG5/MCLR/VPP pin, inducing currents greater than 80 mA, may cause latch-up. Thus, a series resistor of 50-100 should be used when applying a "low" level to the RG5/MCLR/ VPP pin, rather than pulling this pin directly to VSS.
NOTICE: Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operation listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 41
PIC18F8723 FAMILY
FIGURE 4-1: PIC18F8723 FAMILY VOLTAGE-FREQUENCY GRAPH (INDUSTRIAL)
6.0V 5.5V 5.0V 4.5V 4.0V 3.5V 3.0V 2.5V 2.0V PIC18F8723 Family 4.2V
Voltage
FMAX
Frequency
FMAX = 20 MHz in 8-Bit External Memory mode. FMAX = 40 MHz in all other modes.
FIGURE 4-2:
PIC18F8723 FAMILY VOLTAGE-FREQUENCY GRAPH (EXTENDED)
6.0V 5.5V 5.0V PIC18F8723 Family 4.2V 4.5V 4.0V 3.5V 3.0V 2.5V 2.0V
Voltage
FMAX
Frequency
FMAX = 20 MHz in 8-Bit External Memory mode. FMAX = 25 MHz in all other modes.
DS39894A-page 42
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723 FAMILY
FIGURE 4-3: PIC18LF8723 FAMILY VOLTAGE-FREQUENCY GRAPH (INDUSTRIAL)
6.0V 5.5V 5.0V PIC18LF8723 Family 4.2V 4.5V 4.0V 3.5V 3.0V 2.5V 2.0V
Voltage
4 MHz
FMAX
Frequency
In 8-Bit External Memory mode: FMAX = (9.55 MHz/V) (VDDAPPMIN - 2.0V) + 4 MHz, if VDDAPPMIN 4.2V; FMAX = 25 MHz, if VDDAPPMIN > 4.2V. In all other modes: FMAX = (16.36 MHz/V) (VDDAPPMIN - 2.0V) + 4 MHz; FMAX = 40 MHz, if VDDAPPMIN > 4.2V. Note: VDDAPPMIN is the minimum voltage of the PIC(R) device in the application.
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 43
PIC18F8723 FAMILY
TABLE 4-1:
Param No. A01 A03 A04 A06 A07 A10 A20 A21 A22 A25 A30 Sym NR EIL EDL EOFF EGN --
A/D CONVERTER CHARACTERISTICS: PIC18F8723 FAMILY (INDUSTRIAL)
Characteristic Resolution Integral Linearity Error Differential Linearity Error Offset Error Gain Error Monotonicity 3 VSS + 3.0V VSS - 0.3V VREFL -- Min -- -- -- -- -- -- -- -- -- Typ -- <1 -- <1 -- <1 -- <1 -- Guaranteed(1) -- -- -- -- -- VDD - VSS VDD + 0.3V VDD - 3.0V VREFH 2.5 Max 12 2.0 2.0 +1.5/-1.0 +1.5/-1.0 5 3 1.25 2.00 Units bit LSB LSB LSB LSB LSB LSB LSB LSB -- V V V V k VDD = 5.0V VDD = 3.0V VREF 3.0V VDD = 5.0V VDD = 3.0V VREF 3.0V VDD = 5.0V VDD = 3.0V VREF 3.0V VDD = 5.0V VSS VAIN VREF For 12-bit resolution For 12-bit resolution For 12-bit resolution Conditions VREF 3.0V VDD = 3.0V VREF 3.0V
VREF Reference Voltage Range (VREFH - VREFL) VREFH Reference Voltage High VREFL Reference Voltage Low VAIN ZAIN Analog Input Voltage Recommended Impedance of Analog Voltage Source VREF Input Current(2)
A50
IREF
-- --
-- --
5 150
A A
During VAIN acquisition. During A/D conversion cycle.
Note 1: 2:
The A/D conversion result never decreases with an increase in the input voltage and has no missing codes. VREFH current is from the RA3/AN3/VREF+ pin or VDD, whichever is selected as the VREFH source. VREFL current is from the RA2/AN2/VREF-/CVREF pin or VSS, whichever is selected as the VREFL source.
DS39894A-page 44
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723 FAMILY
FIGURE 4-4: A/D CONVERSION TIMING
BSF ADCON0, GO (Note 2) Q4 A/D CLK(1) 132 131 130
A/D DATA
11
10
9
...
...
3
2
1
0
ADRES ADIF GO
OLD_DATA
NEW_DATA TCY
DONE SAMPLING STOPPED
SAMPLE Note 1: 2:
If the A/D clock source is selected as RC, a time of TCY is added before the A/D clock starts. This allows the SLEEP instruction to be executed. This is a minimal RC delay (typically 100 ns), which also disconnects the holding capacitor from the analog input.
TABLE 4-2:
Param Symbol No. 130 TAD
A/D CONVERSION REQUIREMENTS
Characteristic A/D Clock Period PIC18FXXXX PIC18LFXXXX PIC18FXXXX PIC18LFXXXX Min 0.8 1.4 -- -- 13 1.4 -- 0.2 Max 12.5(1) 25.0(1) 1 3 14 -- (Note 4) -- s Units s s s s TAD s Conditions TOSC based, VREF 3.0V VDD = 3.0V; TOSC based, VREF full range A/D RC mode VDD = 3.0V; A/D RC mode
131 132 135 137
TCNV TACQ TSWC TDIS
Conversion Time (not including acquisition time)(2) Acquisition Time(3) Switching Time from Convert Sample Discharge Time
Note 1: 2: 3: 4:
The time of the A/D clock period is dependent on the device frequency and the TAD clock divider. ADRES registers may be read on the following TCY cycle. The time for the holding capacitor to acquire the "New" input voltage when the voltage changes full scale after the conversion (VDD to VSS or VSS to VDD). The source impedance (RS) on the input channels is 50. On the following cycle of the device clock.
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 45
PIC18F8723 FAMILY
NOTES:
DS39894A-page 46
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723 FAMILY
5.0 PACKAGING INFORMATION
For packaging information, see the "PIC18F8722 Family Data Sheet" (DS39646).
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 47
PIC18F8723 FAMILY
NOTES:
DS39894A-page 48
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723 FAMILY
APPENDIX A: REVISION HISTORY APPENDIX B:
Revision A (August 2007)
Original data sheet for the PIC18F8723 family of devices.
DEVICE DIFFERENCES
The differences between the devices listed in this data sheet are shown in Table B-1.
TABLE B-1:
PIC18F8723 FAMILY DEVICE DIFFERENCES
PIC18F6628 96K 49152 28 Ports A, B, C, D, E, F, G 2 3 Yes No 12 Input Channels 64-Pin TQFP PIC18F6723 128K 65536 28 Ports A, B, C, D, E, F, G 2 3 Yes No 12 Input Channels 64-Pin TQFP PIC18F8628 96K 49152 29 Ports A, B, C, D, E, F, G, H, J 2 3 Yes Yes 16 Input Channels 80-Pin TQFP PIC18F8723 128K 65536 29 Ports A, B, C, D, E, F, G, H, J 2 3 Yes Yes 16 Input Channels 80-Pin TQFP
Features Program Memory (Bytes) Program Memory (Instructions) Interrupt Sources I/O Ports Capture/Compare/PWM Modules Enhanced Capture/Compare/PWM Modules Parallel Communications (PSP) External Memory Bus 12-Bit Analog-to-Digital Module Packages
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 49
PIC18F8723 FAMILY
APPENDIX C: CONVERSION CONSIDERATIONS APPENDIX D: MIGRATION FROM BASELINE TO ENHANCED DEVICES
This appendix discusses the considerations for converting from previous versions of a device to the ones listed in this data sheet. Typically, these changes are due to the differences in the process technology used. An example of this type of conversion is from a PIC16C74A to a PIC16C74B. Not Applicable
This section discusses how to migrate from a Baseline device (i.e., PIC16C5X) to an Enhanced MCU device (i.e., PIC18FXXX). The following are the list of modifications over the PIC16C5X microcontroller family: Not Currently Available
DS39894A-page 50
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723 FAMILY
APPENDIX E: MIGRATION FROM MID-RANGE TO ENHANCED DEVICES APPENDIX F: MIGRATION FROM HIGH-END TO ENHANCED DEVICES
A detailed discussion of the differences between the mid-range MCU devices (i.e., PIC16CXXX) and the enhanced devices (i.e., PIC18FXXX) is provided in AN716, "Migrating Designs from PIC16C74A/74B to PIC18C442". The changes discussed, while device specific, are generally applicable to all mid-range to enhanced device migrations. This Application Note is available on our web site, www.microchip.com, as Literature Number DS00716.
A detailed discussion of the migration pathway and differences between the high-end MCU devices (i.e., PIC17CXXX) and the enhanced devices (i.e., PIC18FXXX) is provided in AN726, "PIC17CXXX to PIC18CXXX Migration". This Application Note is available on our web site, www.microchip.com, as Literature Number DS00726.
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 51
PIC18F8723 FAMILY
NOTES:
DS39894A-page 52
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723 FAMILY
INDEX
A
A/D ...................................................................................... 29 A/D Converter Interrupt, Configuring .......................... 33 Acquisition Requirements ........................................... 34 ADCON0 Register....................................................... 29 ADCON1 Register....................................................... 29 ADCON2 Register....................................................... 29 ADRESH Register................................................. 29, 32 ADRESL Register ....................................................... 29 Analog Port Pins, Configuring..................................... 36 Associated Registers .................................................. 38 Configuring the Module............................................... 33 Conversion Clock (TAD) .............................................. 35 Conversion Status (GO/DONE Bit) ............................. 32 Conversions ................................................................ 37 Converter Characteristics ........................................... 44 Discharge.................................................................... 37 Operation in Power-Managed Modes ......................... 36 Selecting and Configuring Acquisition Time ............... 35 Special Event Trigger (ECCP2) .................................. 38 Transfer Function........................................................ 33 Use of the ECCP2 Trigger .......................................... 38 Absolute Maximum Ratings ................................................ 41 ADCON0 Register............................................................... 29 GO/DONE Bit.............................................................. 32 ADCON1 Register............................................................... 29 ADCON2 Register............................................................... 29 ADRESH Register............................................................... 29 ADRESL Register ......................................................... 29, 32 Analog-to-Digital Converter. See A/D.
F
Features Summary Table ..................................................... 1
I
Internet Address ................................................................. 55 Interrupt Sources A/D Conversion Complete .......................................... 33
M
Microchip Internet Web Site................................................ 55 Migration From Baseline to Enhanced Devices.................. 50 Migration From High-End to Enhanced Devices................. 51 Migration From Mid-Range to Enhanced Devices .............. 51 More Information................................................................... 5 Customer Notification System ...................................... 5 Errata............................................................................ 5
O
Overview External Memory Interface ........................................... 1 Features Summary Table ............................................. 1 Peripheral Highlights .................................................... 1 Power-Managed Modes ............................................... 1 Special Microcontroller Features .................................. 1
P
Packaging Information ........................................................ 47 Peripheral Highlights............................................................. 1 Pin Diagrams 64-Pin TQFP................................................................. 2 80-Pin TQFP................................................................. 3 Pin Functions AVDD (64-pin) ............................................................. 18 AVDD (80-pin) ............................................................. 28 AVSS (64-pin).............................................................. 18 AVSS (80-pin).............................................................. 28 OSC1/CLKI/RA7................................................... 11, 19 OSC2/CLKO/RA6 ................................................. 11, 19 RA0/AN0............................................................... 12, 20 RA1/AN1............................................................... 12, 20 RA2/AN2/VREF- .................................................... 12, 20 RA3/AN3/VREF+ ................................................... 12, 20 RA4/T0CKI ........................................................... 12, 20 RA5/AN4/HLVDIN ................................................ 12, 20 RB0/INT0/FLT0 .................................................... 13, 21 RB1/INT1.............................................................. 13, 21 RB2/INT2.............................................................. 13, 21 RB3/INT3.................................................................... 13 RB3/INT3/ECCP2/P2A ............................................... 21 RB4/KBI0.............................................................. 13, 21 RB5/KBI1/PGM..................................................... 13, 21 RB6/KBI2/PGC ..................................................... 13, 21 RB7/KBI3/PGD ..................................................... 13, 21 RC0/T1OSO/T13CKI ............................................ 14, 22 RC1/T1OSI/ECCP2/P2A ...................................... 14, 22 RC2/ECCP1/P1A.................................................. 14, 22 RC3/SCK1/SCL1 .................................................. 14, 22 RC4/SDI1/SDA1 ................................................... 14, 22 RC5/SDO1............................................................ 14, 22 RC6/TX1/CK1....................................................... 14, 22 RC7/RX1/DT1....................................................... 14, 22 RD0/AD0/PSP0 .......................................................... 23 RD0/PSP0 .................................................................. 15
B
Block Diagrams A/D .............................................................................. 32 Analog Input Model ..................................................... 33 PIC18F6628/6723......................................................... 9 PIC18F8628/8723....................................................... 10
C
Compare (ECCP2 Module) Special Event Trigger.................................................. 38 Conversion Considerations ................................................. 50 Customer Change Notification Service ............................... 55 Customer Notification Service............................................. 55 Customer Notification System............................................... 5 Customer Support ............................................................... 55
D
Device Differences .............................................................. 49 Device ID Registers ............................................................ 39 Device Overview Features (table)............................................................. 8 Special Features ........................................................... 7
E
Electrical Characteristics..................................................... 41 Equations A/D Acquisition Time................................................... 34 A/D Minimum Charging Time...................................... 34 Calculating the Minimum Required Acquisition Time ................................................. 34 Errata .................................................................................... 5 External Memory Interface .................................................... 1
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 53
PIC18F8723 FAMILY
RD1/AD1/PSP1........................................................... 23 RD1/PSP1................................................................... 15 RD2/AD2/PSP2........................................................... 23 RD2/PSP2................................................................... 15 RD3/AD3/PSP3........................................................... 23 RD3/PSP3................................................................... 15 RD4/AD4/PSP4/SDO2 ................................................ 23 RD4/PSP4/SDO2 ........................................................ 15 RD5/AD5/PSP5/SDI2/SDA2 ....................................... 23 RD5/PSP5/SDI2/SDA2 ............................................... 15 RD6/AD6/PSP6/SCK2/SCL2 ...................................... 23 RD6/PSP6/SCK2/SCL2 .............................................. 15 RD7/AD7/PSP7/SS2 ................................................... 23 RD7/PSP7/SS2........................................................... 15 RE0/AD8/RD/P2D ....................................................... 24 RE0/RD/P2D ............................................................... 16 RE1/AD9/WR/P2C ...................................................... 24 RE1/WR/P2C .............................................................. 16 RE2/AD10/CS/P2B ..................................................... 24 RE2/CS/P2D ............................................................... 16 RE3/AD11/P3C ........................................................... 24 RE3/P3C ..................................................................... 16 RE4/AD12/P3B ........................................................... 24 RE4/P3B ..................................................................... 16 RE5/AD13/P1C ........................................................... 24 RE5/P1C ..................................................................... 16 RE6/AD14/P1B ........................................................... 24 RE6/P1B ..................................................................... 16 RE7/AD15/ECCP2/P2A .............................................. 24 RE7/ECCP2/P2A ........................................................ 16 RF0/AN5 ............................................................... 17, 25 RF1/AN6/C2OUT .................................................. 17, 25 RF2/AN7/C1OUT .................................................. 17, 25 RF3/AN8 ............................................................... 17, 25 RF4/AN9 ............................................................... 17, 25 RF5/AN10/CVREF.................................................. 17, 25 RF6/AN11 ............................................................. 17, 25 RF7/SS1 ............................................................... 17, 25 RG0/ECCP3/P3A .................................................. 18, 26 RG1/TX2/CK2 ....................................................... 18, 26 RG2/RX2/DT2 ....................................................... 18, 26 RG3/CCP4/P3D .................................................... 18, 26 RG4/CCP5/P1D .................................................... 18, 26 RG5....................................................................... 18, 26 RG5/MCLR/VPP .................................................... 11, 19 RH0/A16 ..................................................................... 27 RH1/A17 ..................................................................... 27 RH2/A18 ..................................................................... 27 RH3/A19 ..................................................................... 27 RH4/AN12/P3C ........................................................... 27 RH5/AN13/P3B ........................................................... 27 RH6/AN14/P1C ........................................................... 27 RH7/AN15/P1B ........................................................... 27 RJ0/ALE ...................................................................... 28 RJ1/OE ....................................................................... 28 RJ2/WRL..................................................................... 28 RJ3/WRH .................................................................... 28 RJ4/BA0 ...................................................................... 28 RJ5/CE........................................................................ 28 RJ6/LB ........................................................................ 28 RJ7/UB........................................................................ 28 VDD.............................................................................. 28 VDD.............................................................................. 18 VSS.............................................................................. 28 VSS.............................................................................. 18 Pinout I/O Descriptions PIC18F6628/6723 ...................................................... 11 PIC18F8628/8723 ...................................................... 19 Power-Managed Modes........................................................ 1 and A/D Operation ...................................................... 36 Product Identification System ............................................. 57
R
Reader Response............................................................... 56 Registers ADCON0 (A/D Control 0)............................................ 29 ADCON1 (A/D Control 1)............................................ 30 ADCON2 (A/D Control 2)............................................ 31 DEVID1 (Device ID 1)................................................. 40 DEVID2 (Device ID 2)................................................. 40 Revision History.................................................................. 49
S
Special Features of the CPU .............................................. 39 Device ID Registers .................................................... 39 Special Microcontroller Features .......................................... 1
T
Timing Diagrams A/D Conversion........................................................... 45 Timing Diagrams and Specifications A/D Conversion Requirements ................................... 45
V
Voltage-Frequency Graphs Extended (PIC18F8723) ............................................. 42 Industrial (PIC18F8723).............................................. 42 Industrial (PIC18LF8723)............................................ 43
W
Worldwide Sales and Service Offices................................. 58 WWW Address ................................................................... 55 WWW, On-Line Support ....................................................... 5
DS39894A-page 54
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723 FAMILY
THE MICROCHIP WEB SITE
Microchip provides online support via our WWW site at www.microchip.com. This web site is used as a means to make files and information easily available to customers. Accessible by using your favorite Internet browser, the web site contains the following information: * Product Support - Data sheets and errata, application notes and sample programs, design resources, user's guides and hardware support documents, latest software releases and archived software * General Technical Support - Frequently Asked Questions (FAQ), technical support requests, online discussion groups, Microchip consultant program member listing * Business of Microchip - Product selector and ordering guides, latest Microchip press releases, listing of seminars and events, listings of Microchip sales offices, distributors and factory representatives
CUSTOMER SUPPORT
Users of Microchip products can receive assistance through several channels: * * * * * Distributor or Representative Local Sales Office Field Application Engineer (FAE) Technical Support Development Systems Information Line
Customers should contact their distributor, representative or field application engineer (FAE) for support. Local sales offices are also available to help customers. A listing of sales offices and locations is included in the back of this document. Technical support is available through the web site at: http://support.microchip.com
CUSTOMER CHANGE NOTIFICATION SERVICE
Microchip's customer notification service helps keep customers current on Microchip products. Subscribers will receive e-mail notification whenever there are changes, updates, revisions or errata related to a specified product family or development tool of interest. To register, access the Microchip web site at www.microchip.com, click on Customer Change Notification and follow the registration instructions.
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 55
PIC18F8723 FAMILY
READER RESPONSE
It is our intention to provide you with the best documentation possible to ensure successful use of your Microchip product. If you wish to provide your comments on organization, clarity, subject matter, and ways in which our documentation can better serve you, please FAX your comments to the Technical Publications Manager at (480) 792-4150. Please list the following information, and use this outline to provide us with your comments about this document. To: RE: Technical Publications Manager Reader Response Total Pages Sent ________
From: Name Company Address City / State / ZIP / Country Telephone: (_______) _________ - _________ Application (optional): Would you like a reply? Y N Literature Number: DS39894A FAX: (______) _________ - _________
Device: PIC18F8723 Family Questions:
1. What are the best features of this document?
2. How does this document meet your hardware and software development needs?
3. Do you find the organization of this document easy to follow? If not, why?
4. What additions to the document do you think would enhance the structure and subject?
5. What deletions from the document could be made without affecting the overall usefulness?
6. Is there any incorrect or misleading information (what and where)?
7. How would you improve this document?
DS39894A-page 56
Preliminary
(c) 2007 Microchip Technology Inc.
PIC18F8723 FAMILY
PIC18F8723 FAMILY PRODUCT IDENTIFICATION SYSTEM
To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. PART NO. Device X Temperature Range /XX Package XXX Pattern Examples:
a) PIC18LF6723-I/PT 301 = Industrial temp., TQFP package, Extended VDD limits, QTP pattern #301. PIC18F6723-E/PT = Extended temp., TQFP package, standard VDD limits.
b) Device(1) (2) PIC18F6628/6723, PIC18F8628/8723, VDD range 4.2V to 5.5V PIC18LF6628/6723, PIC18LF6628/6723( VDD range 2.0V to 5.5V I E = = -40C to +85C (Industrial) -40C to +125C (Extended) TQFP (Thin Quad Flatpack)
Temperature Range Package Pattern
PT =
QTP, SQTP, Code or Special Requirements (blank otherwise)
Note 1: 2:
F = Standard Voltage Range LF = Wide Voltage Range T = in tape and reel TQFP packages only.
(c) 2007 Microchip Technology Inc.
Preliminary
DS39894A-page 57
WORLDWIDE SALES AND SERVICE
AMERICAS
Corporate Office 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support: http://support.microchip.com Web Address: www.microchip.com Atlanta Duluth, GA Tel: 678-957-9614 Fax: 678-957-1455 Boston Westborough, MA Tel: 774-760-0087 Fax: 774-760-0088 Chicago Itasca, IL Tel: 630-285-0071 Fax: 630-285-0075 Dallas Addison, TX Tel: 972-818-7423 Fax: 972-818-2924 Detroit Farmington Hills, MI Tel: 248-538-2250 Fax: 248-538-2260 Kokomo Kokomo, IN Tel: 765-864-8360 Fax: 765-864-8387 Los Angeles Mission Viejo, CA Tel: 949-462-9523 Fax: 949-462-9608 Santa Clara Santa Clara, CA Tel: 408-961-6444 Fax: 408-961-6445 Toronto Mississauga, Ontario, Canada Tel: 905-673-0699 Fax: 905-673-6509
ASIA/PACIFIC
Asia Pacific Office Suites 3707-14, 37th Floor Tower 6, The Gateway Harbour City, Kowloon Hong Kong Tel: 852-2401-1200 Fax: 852-2401-3431 Australia - Sydney Tel: 61-2-9868-6733 Fax: 61-2-9868-6755 China - Beijing Tel: 86-10-8528-2100 Fax: 86-10-8528-2104 China - Chengdu Tel: 86-28-8665-5511 Fax: 86-28-8665-7889 China - Fuzhou Tel: 86-591-8750-3506 Fax: 86-591-8750-3521 China - Hong Kong SAR Tel: 852-2401-1200 Fax: 852-2401-3431 China - Qingdao Tel: 86-532-8502-7355 Fax: 86-532-8502-7205 China - Shanghai Tel: 86-21-5407-5533 Fax: 86-21-5407-5066 China - Shenyang Tel: 86-24-2334-2829 Fax: 86-24-2334-2393 China - Shenzhen Tel: 86-755-8203-2660 Fax: 86-755-8203-1760 China - Shunde Tel: 86-757-2839-5507 Fax: 86-757-2839-5571 China - Wuhan Tel: 86-27-5980-5300 Fax: 86-27-5980-5118 China - Xian Tel: 86-29-8833-7252 Fax: 86-29-8833-7256
ASIA/PACIFIC
India - Bangalore Tel: 91-80-4182-8400 Fax: 91-80-4182-8422 India - New Delhi Tel: 91-11-4160-8631 Fax: 91-11-4160-8632 India - Pune Tel: 91-20-2566-1512 Fax: 91-20-2566-1513 Japan - Yokohama Tel: 81-45-471- 6166 Fax: 81-45-471-6122 Korea - Daegu Tel: 82-53-744-4301 Fax: 82-53-744-4302 Korea - Seoul Tel: 82-2-554-7200 Fax: 82-2-558-5932 or 82-2-558-5934 Malaysia - Penang Tel: 60-4-646-8870 Fax: 60-4-646-5086 Philippines - Manila Tel: 63-2-634-9065 Fax: 63-2-634-9069 Singapore Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan - Hsin Chu Tel: 886-3-572-9526 Fax: 886-3-572-6459 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350
EUROPE
Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79 Germany - Munich Tel: 49-89-627-144-0 Fax: 49-89-627-144-44 Italy - Milan Tel: 39-0331-742611 Fax: 39-0331-466781 Netherlands - Drunen Tel: 31-416-690399 Fax: 31-416-690340 Spain - Madrid Tel: 34-91-708-08-90 Fax: 34-91-708-08-91 UK - Wokingham Tel: 44-118-921-5869 Fax: 44-118-921-5820
06/25/07
DS39894A-page 58
Preliminary
(c) 2007 Microchip Technology Inc.

▲Up To Search▲

Price & Availability of PIC18F8723EPT

	To Download PIC18F8723EPT Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .