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Features
* High Performance, Low Power AVR(R) 8-Bit Microcontroller * Advanced RISC Architecture
- 130 Powerful Instructions - Most Single Clock Cycle Execution - 32 x 8 General Purpose Working Registers - Fully Static Operation - Up to 16 MIPS Throughput at 16 MHz - On-Chip 2-cycle Multiplier Non-volatile Program and Data Memories - In-System Self-Programmable Flash, Endurance: 10,000 Write/Erase Cycles 32K bytes (ATmega325/ATmega3250) 64K bytes (ATmega645/ATmega6450) - Optional Boot Code Section with Independent Lock Bits In-System Programming by On-chip Boot Program True Read-While-Write Operation - EEPROM, Endurance: 100,000 Write/Erase Cycles 1K bytes (ATmega325/ATmega3250) 2K bytes (ATmega645/ATmega6450) - Internal SRAM 2K bytes (ATmega325/ATmega3250) 4K bytes (ATmega645/ATmega6450) - Programming Lock for Software Security JTAG (IEEE std. 1149.1 compliant) Interface - Boundary-scan Capabilities According to the JTAG Standard - Extensive On-chip Debug Support - Programming of Flash, EEPROM, Fuses, and Lock Bits through the JTAG Interface Peripheral Features - Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode - One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode - Real Time Counter with Separate Oscillator - Four PWM Channels - 8-channel, 10-bit ADC - Programmable Serial USART - Master/Slave SPI Serial Interface - Universal Serial Interface with Start Condition Detector - Programmable Watchdog Timer with Separate On-chip Oscillator - On-chip Analog Comparator - Interrupt and Wake-up on Pin Change Special Microcontroller Features - Power-on Reset and Programmable Brown-out Detection - Internal Calibrated Oscillator - External and Internal Interrupt Sources - Five Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, and Standby I/O and Packages - 53/68 Programmable I/O Lines - 64-lead TQFP, 64-pad QFN/MLF, and 100-lead TQFP Speed Grade: - ATmega325V/ATmega3250V/ATmega645V/ATmega6450V: 0 - 4 MHz @ 1.8 - 5.5V, 0 - 8 MHz @ 2.7 - 5.5V - ATmega325/3250/645/6450: 0 - 8 MHz @ 2.7 - 5.5V, 0 - 16 MHz @ 4.5 - 5.5V Temperature range: - -40C to 85C Industrial
*
8-bit Microcontroller with In-System Programmable Flash ATmega325/V ATmega3250/V ATmega645/V ATmega6450/V Preliminary Summary
*
*
*
* *
*
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ATmega325/3250/645/6450
Features (Continued)
* Ultra-Low Power Consumption
- Active Mode: 1 MHz, 1.8V: 350 A 32 kHz, 1.8V: 20 A (including Oscillator) - Power-down Mode: 100 nA at 1.8V
Pin Configurations
Figure 1. Pinout ATmega3250/6450
PF5 (ADC5/TMS) PF6 (ADC6/TDO) PF4 (ADC4/TCK) PF7 (ADC7/TDI) PH7 (PCINT23) PH6 (PCINT22) PH5 (PCINT21) PH4 (PCINT20) PF0 (ADC0) PF2 (ADC2) PF3 (ADC3) PF1(ADC1)
AGND
AVCC
AREF
GND
DNC
DNC
DNC
DNC
DNC
VCC
PA0
PA1 77
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
DNC (RXD/PCINT0) PE0 (TXD/PCINT1) PE1 (XCK/AIN0/PCINT2) PE2 (AIN1/PCINT3) PE3 (USCK/SCL/PCINT4) PE4 (DI/SDA/PCINT5) PE5 (DO/PCINT6) PE6 (CLKO/PCINT7) PE7 VCC GND DNC (PCINT24) PJ0 (PCINT25) PJ1 DNC DNC DNC DNC (SS/PCINT8) PB0 (SCK/PCINT9) PB1 (MOSI/PCINT10) PB2 (MISO/PCINT11) PB3 (OC0A/PCINT12) PB4 (OC1A/PCINT13) PB5 (OC1B/PCINT14) PB6
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 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
76
PA2
75 74 INDEX CORNER 73 72 71 70 69 68 67 66 65 64
PA3 PA4 PA5 PA6 PA7 PG2 PC7 PC6 DNC PH3 (PCINT19) PH2 (PCINT18) PH1 (PCINT17) PH0 (PCINT16) DNC DNC DNC DNC PC5 PC4 PC3 PC2 PC1 PC0 PG1 PG0
ATmega3250/6450
63 62 61 60 59 58 57 56 55 54 53 52 51
(PCINT26) PJ2
(PCINT27) PJ3
(PCINT28) PJ4
(PCINT29) PJ5
(OC2A/PCINT15) PB7
(PCINT30) PJ6
(T1) PG3
(T0) PG4
(ICP1) PD0
RESET/PG5
(INT0) PD1
DNC
VCC
GND
DNC
DNC
DNC
PD2
PD3
PD4
PD5
PD6
XTAL2 (TOSC2)
XTAL1 (TOSC1)
PD7
2
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Figure 2. Pinout ATmega325/645
PF5 (ADC5/TMS) PF6 (ADC6/TDO) PF4 (ADC4/TCK) PF7 (ADC7/TDI) PF0 (ADC0) PF1 (ADC1) PF2 (ADC2) PF3 (ADC3)
AVCC
AREF
GND
GND
VCC
PA1 50
PA0
61
60
59
58
57
56
55
54
53
52
51
64
63
DNC (RXD/PCINT0) PE0 (TXD/PCINT1) PE1 (XCK/AIN0/PCINT2) PE2 (AIN1/PCINT3) PE3 (USCK/SCL/PCINT4) PE4 (DI/SDA/PCINT5) PE5 (DO/PCINT6) PE6 (CLKO/PCINT7) PE7 (SS/PCINT8) PB0 (SCK/PCINT9) PB1 (MOSI/PCINT10) PB2 (MISO/PCINT11) PB3 (OC0A/PCINT12) PB4 (OC1A/PCINT13) PB5 (OC1B/PCINT14) PB6
62
49
48 PA3 47 PA4 46 PA5 45 PA6 44 PA7 43 PG2 42 PC7 41 PC6 40 PC5 39 PC4 38 PC3 37 PC2 36 PC1 35 PC0 34 PG1 33 PG0
1 2 INDEX CORNER 3 4 5 6 7 8 9 10 11 12 13 14 15 16
ATmega325/645
GND 22
XTAL2 (TOSC2) 23
XTAL1 (TOSC1) 24
(ICP1) PD0 25
PD1 (INT0) 26
PD2 27
PD3 28
(OC2A/PCINT15) PB7 17
(T1) PG3 18
(T0) PG4 19
RESET/PG5 20
VCC 21
PD4 29
PD5 30
PD6 31
Note:
The large center pad underneath the QFN/MLF packages is made of metal and internally connected to GND. It should be soldered or glued to the board to ensure good mechanical stability. If the center pad is left unconnected, the package might loosen from the board.
Disclaimer
Typical values contained in this datasheet are based on simulations and characterization of other AVR microcontrollers manufactured on the same process technology. Min and Max values will be available after the device is characterized.
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ATmega325/3250/645/6450
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PD7 32
PA2
ATmega325/3250/645/6450
Overview
The ATmega325/3250/645/6450 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega325/3250/645/6450 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.
Block Diagram
Figure 3. Block Diagram
GND
VCC
PF0 - PF7
PA0 - PA7
PC0 - PC7
PORTF DRIVERS
PORTA DRIVERS
PORTC DRIVERS
DATA REGISTER PORTF
DATA DIR. REG. PORTF
DATA REGISTER PORTA
DATA DIR. REG. PORTA
DATA REGISTER PORTC
DATA DIR. REG. PORTC
8-BIT DATA BUS
AVCC AGND AREF ADC CALIB. OSC INTERNAL OSCILLATOR OSCILLATOR JTAG TAP PROGRAM COUNTER STACK POINTER WATCHDOG TIMER
DATA DIR. REG. PORTH
TIMING AND CONTROL
PORTH DRIVERS
ON-CHIP DEBUG
PROGRAM FLASH
SRAM
MCU CONTROL REGISTER
PH0 - PH7
DATA REGISTER PORTH
BOUNDARYSCAN
INSTRUCTION REGISTER
GENERAL PURPOSE REGISTERS
X Y Z
TIMER/ COUNTERS
PROGRAMMING LOGIC
INSTRUCTION DECODER
INTERRUPT UNIT
XTAL1
XTAL2
DATA DIR. REG. PORTJ
CONTROL LINES
ALU
EEPROM
PORTJ DRIVERS
AVR CPU
STATUS REGISTER
PJ0 - PJ6
DATA REGISTER PORTJ
USART
UNIVERSAL SERIAL INTERFACE
SPI
ANALOG COMPARATOR
DATA REGISTER PORTE
DATA DIR. REG. PORTE
DATA REGISTER PORTB
DATA DIR. REG. PORTB
DATA REGISTER PORTD
DATA DIR. REG. PORTD
DATA REG. PORTG
DATA DIR. REG. PORTG
+ -
PORTE DRIVERS
PORTB DRIVERS
PORTD DRIVERS
PORTG DRIVERS
PE0 - PE7
PB0 - PB7
PD0 - PD7
PG0 - PG4
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RESET
4
The AVR core combines a rich instruction set with 32 general purpose working registers. All the 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle. The resulting architecture is more code efficient while achieving throughputs up to ten times faster than conventional CISC microcontrollers. The ATmega325/3250/645/6450 provides the following features: 32/64K bytes of InSystem Programmable Flash with Read-While-Write capabilities, 1/2K bytes EEPROM, 2/4K byte SRAM, 54/69 general purpose I/O lines, 32 general purpose working registers, a JTAG interface for Boundary-scan, On-chip Debugging support and programming, three flexible Timer/Counters with compare modes, internal and external interrupts, a serial programmable USART, Universal Serial Interface with Start Condition Detector, an 8-channel, 10-bit ADC, a programmable Watchdog Timer with internal Oscillator, an SPI serial port, and five software selectable power saving modes. The Idle mode stops the CPU while allowing the SRAM, Timer/Counters, SPI port, and interrupt system to continue functioning. The Power-down mode saves the register contents but freezes the Oscillator, disabling all other chip functions until the next interrupt or hardware reset. In Power-save mode, the asynchronous timer will continue to run, allowing the user to maintain a timer base while the rest of the device is sleeping. The ADC Noise Reduction mode stops the CPU and all I/O modules except asynchronous timer and ADC to minimize switching noise during ADC conversions. In Standby mode, the crystal/resonator Oscillator is running while the rest of the device is sleeping. This allows very fast start-up combined with low-power consumption. The device is manufactured using Atmel's high density non-volatile memory technology. The On-chip In-System re-Programmable (ISP) Flash allows the program memory to be reprogrammed In-System through an SPI serial interface, by a conventional non-volatile memory programmer, or by an On-chip Boot program running on the AVR core. The Boot program can use any interface to download the application program in the Application Flash memory. Software in the Boot Flash section will continue to run while the Application Flash section is updated, providing true Read-While-Write operation. By combining an 8-bit RISC CPU with In-System Self-Programmable Flash on a monolithic chip, the Atmel ATmega325/3250/645/6450 is a powerful microcontroller that provides a highly flexible and cost effective solution to many embedded control applications. The ATmega325/3250/645/6450 AVR is supported with a full suite of program and system development tools including: C Compilers, Macro Assemblers, Program Debugger/Simulators, In-Circuit Emulators, and Evaluation kits.
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ATmega325/3250/645/6450
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ATmega325/3250/645/6450
Comparison between ATmega325, ATmega3250, ATmega645 and ATmega6450
The ATmega325, ATmega3250, ATmega645, and ATmega6450 differs only in memory sizes, pin count and pinout. Table 1 on page 6 summarizes the different configurations for the four devices. Table 1. Configuration Summary
Device ATmega325 ATmega3250 ATmega645 ATmega6450 Flash 32K bytes 32K bytes 64K bytes 64K bytes EEPROM 1K bytes 1K bytes 2K bytes 2K bytes RAM 2K bytes 2K bytes 4K bytes 4K bytes General Purpose I/O Pins 54 69 54 69
Pin Descriptions
VCC GND Port A (PA7..PA0)
The following section describes the I/O-pin special functions. Digital supply voltage. Ground. Port A is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port A output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port A pins that are externally pulled low will source current if the pull-up resistors are activated. The Port A pins are tri-stated when a reset condition becomes active, even if the clock is not running. Port B is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port B output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port B pins that are externally pulled low will source current if the pull-up resistors are activated. The Port B pins are tri-stated when a reset condition becomes active, even if the clock is not running. Port B has better driving capabilities than the other ports. Port B also serves the functions of various special features of the ATmega325/3250/645/6450 as listed on page 66.
Port B (PB7..PB0)
Port C (PC7..PC0)
Port C is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port C output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port C pins that are externally pulled low will source current if the pull-up resistors are activated. The Port C pins are tri-stated when a reset condition becomes active, even if the clock is not running. Port D is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port D output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port D pins that are externally pulled low will source current if the pull-up resistors are activated. The Port D pins are tri-stated when a reset condition becomes active, even if the clock is not running. Port D also serves the functions of various special features of the ATmega325/3250/645/6450 as listed on page 69.
Port D (PD7..PD0)
Port E (PE7..PE0)
Port E is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port E output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port E pins that are externally pulled low will source 6
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current if the pull-up resistors are activated. The Port E pins are tri-stated when a reset condition becomes active, even if the clock is not running. Port E also serves the functions of various special features of the ATmega325/3250/645/6450 as listed on page 70. Port F (PF7..PF0) Port F serves as the analog inputs to the A/D Converter. Port F also serves as an 8-bit bi-directional I/O port, if the A/D Converter is not used. Port pins can provide internal pull-up resistors (selected for each bit). The Port F output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port F pins that are externally pulled low will source current if the pull-up resistors are activated. The Port F pins are tri-stated when a reset condition becomes active, even if the clock is not running. If the JTAG interface is enabled, the pull-up resistors on pins PF7(TDI), PF5(TMS), and PF4(TCK) will be activated even if a reset occurs. Port F also serves the functions of the JTAG interface. Port G (PG5..PG0) Port G is a 6-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port G output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port G pins that are externally pulled low will source current if the pull-up resistors are activated. The Port G pins are tri-stated when a reset condition becomes active, even if the clock is not running. Port G also serves the functions of various special features of the ATmega325/3250/645/6450 as listed on page 70. Port H (PH7..PH0) Port H is a 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port H output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port H pins that are externally pulled low will source current if the pull-up resistors are activated. The Port H pins are tri-stated when a reset condition becomes active, even if the clock is not running. Port H also serves the functions of various special features of the ATmega3250/6450 as listed on page 70. Port J (PJ6..PJ0) Port J is a 7-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port J output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port J pins that are externally pulled low will source current if the pull-up resistors are activated. The Port J pins are tri-stated when a reset condition becomes active, even if the clock is not running. Port J also serves the functions of various special features of the ATmega3250/6450 as listed on page 70. RESET Reset input. A low level on this pin for longer than the minimum pulse length will generate a reset, even if the clock is not running. The minimum pulse length is given in Table 16 on page 40. Shorter pulses are not guaranteed to generate a reset. Input to the inverting Oscillator amplifier and input to the internal clock operating circuit. Output from the inverting Oscillator amplifier. AVCC is the supply voltage pin for Port F and the A/D Converter. It should be externally connected to VCC, even if the ADC is not used. If the ADC is used, it should be connected to VCC through a low-pass filter.
XTAL1 XTAL2 AVCC
7
ATmega325/3250/645/6450
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ATmega325/3250/645/6450
AREF This is the analog reference pin for the A/D Converter. A comprehensive set of development tools, application notes and datasheets are available for download on http://www.atmel.com/avr.
Resources
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Register Summary
Address
(0xFF) (0xFE) (0xFD) (0xFC) (0xFB) (0xFA) (0xF9) (0xF8) (0xF7) (0xF6) (0xF5) (0xF4) (0xF3) (0xF2) (0xF1) (0xF0) (0xEF) (0xEE) (0xED) (0xEC) (0xEB) (0xEA) (0xE9) (0xE8) (0xE7) (0xE6) (0xE5) (0xE4) (0xE3) (0xE2) (0xE1) (0xE0) (0xDF) (0xDE) (0xDD) (0xDC) (0xDB) (0xDA) (0xD9) (0xD8) (0xD7) (0xD6) (0xD5) (0xD4) (0xD3) (0xD2) (0xD1) (0xD0) (0xCF) (0xCE) (0xCD) (0xCC) (0xCB) (0xCA) (0xC9) (0xC8) (0xC7) (0xC6) (0xC5) (0xC4) (0xC3)
Note:
Bit 6
PORTJ6 DDJ6 PINJ6 PORTH6 DDH6 PINH6 -
Registers with bold type only available in ATmega3250/6450.
Bit 5
PORTJ5 DDJ5 PINJ5 PORTH5 DDH5 PINH5 -
Name
Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved PORTJ DDRJ PINJ PORTH DDRH PINH Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved UDR0 UBRR0H UBRR0L Reserved
Bit 7
PORTH7 DDH7 PINH7 -
Bit 4
PORTJ4 DDJ4 PINJ4 PORTH4 DDH4 PINH4 -
Bit 3
PORTJ3 DDJ3 PINJ3 PORTH3 DDH3 PINH3 -
Bit 2
PORTJ2 DDJ2 PINJ2 PORTH2 DDH2 PINH2 -
Bit 1
PORTJ1 DDJ1 PINJ1 PORTH1 DDH1 PINH1 -
Bit 0
PORTJ0 DDJ0 PINJ0 PORTH0 DDH0 PINH0 -
Page
82 82 82 82 82 82
USART0 Data Register USART0 Baud Rate Register High USART0 Baud Rate Register Low -
173 176 176
9
ATmega325/3250/645/6450
2570JS-AVR-11/06
ATmega325/3250/645/6450
Address
(0xC2) (0xC1) (0xC0) (0xBF) (0xBE) (0xBD) (0xBC) (0xBB) (0xBA) (0xB9) (0xB8) (0xB7) (0xB6) (0xB5) (0xB4) (0xB3) (0xB2) (0xB1) (0xB0) (0xAF) (0xAE) (0xAD) (0xAC) (0xAB) (0xAA) (0xA9) (0xA8) (0xA7) (0xA6) (0xA5) (0xA4) (0xA3) (0xA2) (0xA1) (0xA0) (0x9F) (0x9E) (0x9D) (0x9C) (0x9B) (0x9A) (0x99) (0x98) (0x97) (0x96) (0x95) (0x94) (0x93) (0x92) (0x91) (0x90) (0x8F) (0x8E) (0x8D) (0x8C) (0x8B) (0x8A) (0x89) (0x88) (0x87) (0x86) (0x85) (0x84)
Name
UCSR0C UCSR0B UCSR0A Reserved Reserved Reserved Reserved Reserved USIDR USISR USICR Reserved ASSR Reserved Reserved OCR2A TCNT2 Reserved TCCR2A Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved OCR1BH OCR1BL OCR1AH OCR1AL ICR1H ICR1L TCNT1H TCNT1L
Bit 7
RXCIE0 RXC0 USISIF USISIE -
Bit 6
UMSEL0 TXCIE0 TXC0 USIOIF USIOIE -
Bit 5
UPM01 UDRIE0 UDRE0 USIPF USIWM1 -
Bit 4
UPM00 RXEN0 FE0 USIDC USIWM0 EXCLK -
Bit 3
USBS0 TXEN0 DOR0 USICNT3 USICS1 AS2 -
Bit 2
UCSZ01 UCSZ02 UPE0 USICNT2 USICS0 TCN2UB -
Bit 1
UCSZ00 RXB80 U2X0 USICNT1 USICLK OCR2UB -
Bit 0
UCPOL0 TXB80 MPCM0 -
Page
175 174 173
USI Data Register USICNT0 USITC TCR2UB -
188 189 190 141
Timer/Counter 2 Output Compare Register A Timer/Counter2 FOC2A WGM20 COM2A1 COM2A0 WGM21 CS22 CS21 CS20 -
140 140 138
Timer/Counter1 Output Compare Register B High Timer/Counter1 Output Compare Register B Low Timer/Counter1 Output Compare Register A High Timer/Counter1 Output Compare Register A Low Timer/Counter1 Input Capture Register High Timer/Counter1 Input Capture Register Low Timer/Counter1 High Timer/Counter1 Low
124 124 124 124 124 124 124 124
10
2570JS-AVR-11/06
Address
(0x83) (0x82) (0x81) (0x80) (0x7F) (0x7E) (0x7D) (0x7C) (0x7B) (0x7A) (0x79) (0x78) (0x77) (0x76) (0x75) (0x74) (0x73) (0x72) (0x71) (0x70) (0x6F) (0x6E) (0x6D) (0x6C) (0x6B) (0x6A) (0x69) (0x68) (0x67) (0x66) (0x65) (0x64) (0x63) (0x62) (0x61) (0x60) 0x3F (0x5F) 0x3E (0x5E) 0x3D (0x5D) 0x3C (0x5C) 0x3B (0x5B) 0x3A (0x5A) 0x39 (0x59) 0x38 (0x58) 0x37 (0x57) 0x36 (0x56) 0x35 (0x55) 0x34 (0x54) 0x33 (0x53) 0x32 (0x52) 0x31 (0x51) 0x30 (0x50) 0x2F (0x4F) 0x2E (0x4E) 0x2D (0x4D) 0x2C (0x4C) 0x2B (0x4B) 0x2A (0x4A) 0x29 (0x49) 0x28 (0x48) 0x27 (0x47) 0x26 (0x46) 0x25 (0x45)
Name
Reserved TCCR1C TCCR1B TCCR1A DIDR1 DIDR0 Reserved ADMUX ADCSRB ADCSRA ADCH ADCL Reserved Reserved Reserved Reserved PCMSK3 Reserved Reserved TIMSK2 TIMSK1 TIMSK0 PCMSK2 PCMSK1 PCMSK0 Reserved EICRA Reserved Reserved OSCCAL Reserved PRR Reserved Reserved CLKPR WDTCR SREG SPH SPL Reserved Reserved Reserved Reserved Reserved SPMCSR Reserved MCUCR MCUSR SMCR Reserved OCDR ACSR Reserved SPDR SPSR SPCR GPIOR2 GPIOR1 Reserved Reserved OCR0A TCNT0 Reserved
Bit 7
FOC1A ICNC1 COM1A1 ADC7D REFS1 ADEN
Bit 6
FOC1B ICES1 COM1A0 ADC6D REFS0 ACME ADSC
Bit 5
COM1B1 ADC5D ADLAR ADATE
Bit 4
WGM13 COM1B0 ADC4D MUX4 ADIF
Bit 3
WGM12 ADC3D MUX3 ADIE
Bit 2
CS12 ADC2D MUX2 ADTS2 ADPS2
Bit 1
CS11 WGM11 AIN1D ADC1D MUX1 ADTS1 ADPS1
Bit 0
CS10 WGM10 AIN0D ADC0D MUX0 ADTS0 ADPS0
Page
123 122 120 195 212 208 193/211 210 211 211
ADC Data Register High ADC Data Register Low PCINT23 PCINT15 PCINT7 CLKPCE I PCINT30 PCINT22 PCINT14 PCINT6 T PCINT29 ICIE1 PCINT21 PCINT13 PCINT5 H PCINT28 PCINT20 PCINT12 PCINT4 WDCE S PCINT27 PCINT19 PCINT11 PCINT3 PRTIM1 CLKPS3 WDE V PCINT26 OCIE1B PCINT18 PCINT10 PCINT2 PRSPI CLKPS2 WDP2 N PCINT25 OCIE2A OCIE1A OCIE0A PCINT17 PCINT9 PCINT1 ISC01 PSUSART0 CLKPS1 WDP1 Z PCINT24 TOIE2 TOIE1 TOIE0 PCINT16 PCINT8 PCINT0 ISC00 -
56
143 125 96 57 57 57 54
Oscillator Calibration Register [CAL7..0] PRADC CLKPS0 WDP0 C
29 37
31 45 11 13 13
Stack Pointer High Stack Pointer Low SPMIE JTD IDRD/OCDR7 ACD SPIF SPIE RWWSB OCDR6 ACBG WCOL SPE OCDR5 ACO DORD RWWSRE PUD JTRF OCDR4 ACI MSTR BLBSET WDRF SM2 OCDR3 ACIE CPOL PGWRT BORF SM1 OCDR2 ACIC CPHA PGERS IVSEL EXTRF SM0 OCDR1 ACIS1 SPR1 SPMEN IVCE PORF SE OCDR0 ACIS0 -
249 51/66/222 43 34 218 193 153
SPI Data Register SPI2X SPR0
153 151 24 24
General Purpose I/O Register General Purpose I/O Register Timer/Counter0 -
Timer/Counter0 Output Compare A
96 95
11
ATmega325/3250/645/6450
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ATmega325/3250/645/6450
Address
0x24 (0x44) 0x23 (0x43) 0x22 (0x42) 0x21 (0x41) 0x20 (0x40) 0x1F (0x3F) 0x1E (0x3E) 0x1D (0x3D) 0x1C (0x3C) 0x1B (0x3B) 0x1A (0x3A) 0x19 (0x39) 0x18 (0x38) 0x17 (0x37) 0x16 (0x36) 0x15 (0x35) 0x14 (0x34) 0x13 (0x33) 0x12 (0x32) 0x11 (0x31) 0x10 (0x30) 0x0F (0x2F) 0x0E (0x2E) 0x0D (0x2D) 0x0C (0x2C) 0x0B (0x2B) 0x0A (0x2A) 0x09 (0x29) 0x08 (0x28) 0x07 (0x27) 0x06 (0x26) 0x05 (0x25) 0x04 (0x24) 0x03 (0x23) 0x02 (0x22) 0x01 (0x21) 0x00 (0x20)
Name
TCCR0A GTCCR EEARH EEARL EEDR EECR GPIOR0 EIMSK EIFR Reserved Reserved Reserved Reserved TIFR2 TIFR1 TIFR0 PORTG DDRG PING PORTF DDRF PINF PORTE DDRE PINE PORTD DDRD PIND PORTC DDRC PINC PORTB DDRB PINB PORTA DDRA PINA
Bit 7
FOC0A TSM -
Bit 6
WGM00 -
Bit 5
COM0A1 -
Bit 4
COM0A0 -
Bit 3
WGM01 -
Bit 2
CS02 -
Bit 1
CS01 PSR2
Bit 0
CS00 PSR10
Page
93 98/145 20 20 20
EEPROM Address Register High
EEPROM Address Register Low EEPROM Data Register PCIE3 PCIF3 PORTF7 DDF7 PINF7 PORTE7 DDE7 PINE7 PORTD7 DDD7 PIND7 PORTC7 DDC7 PINC7 PORTB7 DDB7 PINB7 PORTA7 DDA7 PINA7 PCIE2 PCIF2 PORTF6 DDF6 PINF6 PORTE6 DDE6 PINE6 PORTD6 DDD6 PIND6 PORTC6 DDC6 PINC6 PORTB6 DDB6 PINB6 PORTA6 DDA6 PINA6 PCIE1 PCIF1 ICF1 PING5 PORTF5 DDF5 PINF5 PORTE5 DDE5 PINE5 PORTD5 DDD5 PIND5 PORTC5 DDC5 PINC5 PORTB5 DDB5 PINB5 PORTA5 DDA5 PINA5 PCIE0 PCIF0 PORTG4 DDG4 PING4 PORTF4 DDF4 PINF4 PORTE4 DDE4 PINE4 PORTD4 DDD4 PIND4 PORTC4 DDC4 PINC4 PORTB4 DDB4 PINB4 PORTA4 DDA4 PINA4 EERIE PORTG3 DDG3 PING3 PORTF3 DDF3 PINF3 PORTE3 DDE3 PINE3 PORTD3 DDD3 PIND3 PORTC3 DDC3 PINC3 PORTB3 DDB3 PINB3 PORTA3 DDA3 PINA3 EEMWE OCF1B PORTG2 DDG2 PING2 PORTF2 DDF2 PINF2 PORTE2 DDE2 PINE2 PORTD2 DDD2 PIND2 PORTC2 DDC2 PINC2 PORTB2 DDB2 PINB2 PORTA2 DDA2 PINA2 EEWE OCF2A OCF1A OCF0A PORTG1 DDG1 PING1 PORTF1 DDF1 PINF1 PORTE1 DDE1 PINE1 PORTD1 DDD1 PIND1 PORTC1 DDC1 PINC1 PORTB1 DDB1 PINB1 PORTA1 DDA1 PINA1 EERE INT0 INTF0 TOV2 TOV1 TOV0 PORTG0 DDG0 PING0 PORTF0 DDF0 PINF0 PORTE0 DDE0 PINE0 PORTD0 DDD0 PIND0 PORTC0 DDC0 PINC0 PORTB0 DDB0 PINB0 PORTA0 DDA0 PINA0 General Purpose I/O Register
20 24 55 56
143 125 96 82 82 82 81 81 81 81 81 81 81 81 81 80 80 80 80 80 80 80 80 80
Note:
1. For compatibility with future devices, reserved bits should be written to zero if accessed. Reserved I/O memory addresses should never be written. 2. I/O Registers within the address range 0x00 - 0x1F are directly bit-accessible using the SBI and CBI instructions. In these registers, the value of single bits can be checked by using the SBIS and SBIC instructions. 3. Some of the Status Flags are cleared by writing a logical one to them. Note that, unlike most other AVRs, the CBI and SBI instructions will only operate on the specified bit, and can therefore be used on registers containing such Status Flags. The CBI and SBI instructions work with registers 0x00 to 0x1F only. 4. When using the I/O specific commands IN and OUT, the I/O addresses 0x00 - 0x3F must be used. When addressing I/O Registers as data space using LD and ST instructions, 0x20 must be added to these addresses. The ATmega325/3250/645/6450 is a complex microcontroller with more peripheral units than can be supported within the 64 location reserved in Opcode for the IN and OUT instructions. For the Extended I/O space from 0x60 - 0xFF in SRAM, only the ST/STS/STD and LD/LDS/LDD instructions can be used.
12
2570JS-AVR-11/06
Instruction Set Summary
Mnemonics
ADD ADC ADIW SUB SUBI SBC SBCI SBIW AND ANDI OR ORI EOR COM NEG SBR CBR INC DEC TST CLR SER MUL MULS MULSU FMUL FMULS FMULSU RJMP IJMP JMP RCALL ICALL CALL RET RETI CPSE CP CPC CPI SBRC SBRS SBIC SBIS BRBS BRBC BREQ BRNE BRCS BRCC BRSH BRLO BRMI BRPL BRGE BRLT BRHS BRHC BRTS BRTC BRVS BRVC Rd,Rr Rd,Rr Rd,Rr Rd,K Rr, b Rr, b P, b P, b s, k s, k k k k k k k k k k k k k k k k k k k k
Operands
Rd, Rr Rd, Rr Rdl,K Rd, Rr Rd, K Rd, Rr Rd, K Rdl,K Rd, Rr Rd, K Rd, Rr Rd, K Rd, Rr Rd Rd Rd,K Rd,K Rd Rd Rd Rd Rd Rd, Rr Rd, Rr Rd, Rr Rd, Rr Rd, Rr Rd, Rr k Add two Registers
Description
Rd Rd + Rr
Operation
Flags
Z,C,N,V,H Z,C,N,V,H Z,C,N,V,S Z,C,N,V,H Z,C,N,V,H Z,C,N,V,H Z,C,N,V,H Z,C,N,V,S Z,N,V Z,N,V Z,N,V Z,N,V Z,N,V Z,C,N,V Z,C,N,V,H Z,N,V Z,N,V Z,N,V Z,N,V Z,N,V Z,N,V None Z,C Z,C Z,C Z,C Z,C Z,C None None None None None None None I None Z, N,V,C,H Z, N,V,C,H Z, N,V,C,H None None None None None None None None None None None None None None None None None None None None None None
#Clocks
1 1 2 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 3 3 3 4 4 4 1/2/3 1 1 1 1/2/3 1/2/3 1/2/3 1/2/3 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2
ARITHMETIC AND LOGIC INSTRUCTIONS Add with Carry two Registers Add Immediate to Word Subtract two Registers Subtract Constant from Register Subtract with Carry two Registers Subtract with Carry Constant from Reg. Subtract Immediate from Word Logical AND Registers Logical AND Register and Constant Logical OR Registers Logical OR Register and Constant Exclusive OR Registers One's Complement Two's Complement Set Bit(s) in Register Clear Bit(s) in Register Increment Decrement Test for Zero or Minus Clear Register Set Register Multiply Unsigned Multiply Signed Multiply Signed with Unsigned Fractional Multiply Unsigned Fractional Multiply Signed Fractional Multiply Signed with Unsigned Relative Jump Indirect Jump to (Z) Direct Jump Relative Subroutine Call Indirect Call to (Z) Direct Subroutine Call Subroutine Return Interrupt Return Compare, Skip if Equal Compare Compare with Carry Compare Register with Immediate Skip if Bit in Register Cleared Skip if Bit in Register is Set Skip if Bit in I/O Register Cleared Skip if Bit in I/O Register is Set Branch if Status Flag Set Branch if Status Flag Cleared Branch if Equal Branch if Not Equal Branch if Carry Set Branch if Carry Cleared Branch if Same or Higher Branch if Lower Branch if Minus Branch if Plus Branch if Greater or Equal, Signed Branch if Less Than Zero, Signed Branch if Half Carry Flag Set Branch if Half Carry Flag Cleared Branch if T Flag Set Branch if T Flag Cleared Branch if Overflow Flag is Set Branch if Overflow Flag is Cleared Rd Rd + Rr + C Rdh:Rdl Rdh:Rdl + K Rd Rd - Rr Rd Rd - K Rd Rd - Rr - C Rd Rd - K - C Rdh:Rdl Rdh:Rdl - K Rd Rd * Rr Rd Rd * K Rd Rd v Rr Rd Rd v K Rd Rd Rr Rd 0xFF - Rd Rd 0x00 - Rd Rd Rd v K Rd Rd * (0xFF - K) Rd Rd + 1 Rd Rd - 1 Rd Rd * Rd Rd Rd Rd Rd 0xFF R1:R0 Rd x Rr R1:R0 Rd x Rr R1:R0 Rd x Rr
1 R1:R0 (Rd x Rr) << 1 R1:R0 (Rd x Rr) << 1
PC PC + k + 1 PC Z PC k PC PC + k + 1 PC Z PC k PC STACK PC STACK if (Rd = Rr) PC PC + 2 or 3 Rd - Rr Rd - Rr - C Rd - K if (Rr(b)=0) PC PC + 2 or 3 if (Rr(b)=1) PC PC + 2 or 3 if (P(b)=0) PC PC + 2 or 3 if (P(b)=1) PC PC + 2 or 3 if (SREG(s) = 1) then PCPC+k + 1 if (SREG(s) = 0) then PCPC+k + 1 if (Z = 1) then PC PC + k + 1 if (Z = 0) then PC PC + k + 1 if (C = 1) then PC PC + k + 1 if (C = 0) then PC PC + k + 1 if (C = 0) then PC PC + k + 1 if (C = 1) then PC PC + k + 1 if (N = 1) then PC PC + k + 1 if (N = 0) then PC PC + k + 1 if (N V= 0) then PC PC + k + 1 if (N V= 1) then PC PC + k + 1 if (H = 1) then PC PC + k + 1 if (H = 0) then PC PC + k + 1 if (T = 1) then PC PC + k + 1 if (T = 0) then PC PC + k + 1 if (V = 1) then PC PC + k + 1 if (V = 0) then PC PC + k + 1
R1:R0 (Rd x Rr) <<
BRANCH INSTRUCTIONS
13
ATmega325/3250/645/6450
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ATmega325/3250/645/6450
Mnemonics
BRIE BRID SBI CBI LSL LSR ROL ROR ASR SWAP BSET BCLR BST BLD SEC CLC SEN CLN SEZ CLZ SEI CLI SES CLS SEV CLV SET CLT SEH CLH DATA TRANSFER INSTRUCTIONS MOV MOVW LDI LD LD LD LD LD LD LDD LD LD LD LDD LDS ST ST ST ST ST ST STD ST ST ST STD STS LPM LPM LPM SPM IN OUT PUSH Rd, P P, Rr Rr Rd, Z Rd, Z+ Rd, Rr Rd, Rr Rd, K Rd, X Rd, X+ Rd, - X Rd, Y Rd, Y+ Rd, - Y Rd,Y+q Rd, Z Rd, Z+ Rd, -Z Rd, Z+q Rd, k X, Rr X+, Rr - X, Rr Y, Rr Y+, Rr - Y, Rr Y+q,Rr Z, Rr Z+, Rr -Z, Rr Z+q,Rr k, Rr Move Between Registers Copy Register Word Load Immediate Load Indirect Load Indirect and Post-Inc. Load Indirect and Pre-Dec. Load Indirect Load Indirect and Post-Inc. Load Indirect and Pre-Dec. Load Indirect with Displacement Load Indirect Load Indirect and Post-Inc. Load Indirect and Pre-Dec. Load Indirect with Displacement Load Direct from SRAM Store Indirect Store Indirect and Post-Inc. Store Indirect and Pre-Dec. Store Indirect Store Indirect and Post-Inc. Store Indirect and Pre-Dec. Store Indirect with Displacement Store Indirect Store Indirect and Post-Inc. Store Indirect and Pre-Dec. Store Indirect with Displacement Store Direct to SRAM Load Program Memory Load Program Memory Load Program Memory and Post-Inc Store Program Memory In Port Out Port Push Register on Stack Rd Rr Rd+1:Rd Rr+1:Rr Rd K Rd (X) Rd (X), X X + 1 X X - 1, Rd (X) Rd (Y) Rd (Y), Y Y + 1 Y Y - 1, Rd (Y) Rd (Y + q) Rd (Z) Rd (Z), Z Z+1 Z Z - 1, Rd (Z) Rd (Z + q) Rd (k) (X) Rr (X) Rr, X X + 1 X X - 1, (X) Rr (Y) Rr (Y) Rr, Y Y + 1 Y Y - 1, (Y) Rr (Y + q) Rr (Z) Rr (Z) Rr, Z Z + 1 Z Z - 1, (Z) Rr (Z + q) Rr (k) Rr R0 (Z) Rd (Z) Rd (Z), Z Z+1 (Z) R1:R0 Rd P P Rr STACK Rr None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 1 1 2 k k P,b P,b Rd Rd Rd Rd Rd Rd s s Rr, b Rd, b
Operands
Description
Branch if Interrupt Enabled Branch if Interrupt Disabled Set Bit in I/O Register Clear Bit in I/O Register Logical Shift Left Logical Shift Right Rotate Left Through Carry Rotate Right Through Carry Arithmetic Shift Right Swap Nibbles Flag Set Flag Clear Bit Store from Register to T Bit load from T to Register Set Carry Clear Carry Set Negative Flag Clear Negative Flag Set Zero Flag Clear Zero Flag Global Interrupt Enable Global Interrupt Disable Set Signed Test Flag Clear Signed Test Flag Set Twos Complement Overflow. Clear Twos Complement Overflow Set T in SREG Clear T in SREG Set Half Carry Flag in SREG Clear Half Carry Flag in SREG
Operation
if ( I = 1) then PC PC + k + 1 if ( I = 0) then PC PC + k + 1 I/O(P,b) 1 I/O(P,b) 0 Rd(n+1) Rd(n), Rd(0) 0 Rd(n) Rd(n+1), Rd(7) 0 Rd(0)C,Rd(n+1) Rd(n),CRd(7) Rd(7)C,Rd(n) Rd(n+1),CRd(0) Rd(n) Rd(n+1), n=0..6 Rd(3..0)Rd(7..4),Rd(7..4)Rd(3..0) SREG(s) 1 SREG(s) 0 T Rr(b) Rd(b) T C1 C0 N1 N0 Z1 Z0 I1 I0 S1 S0 V1 V0 T1 T0 H1 H0
Flags
None None None None Z,C,N,V Z,C,N,V Z,C,N,V Z,C,N,V Z,C,N,V None SREG(s) SREG(s) T None C C N N Z Z I I S S V V T T H H
#Clocks
1/2 1/2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
BIT AND BIT-TEST INSTRUCTIONS
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2570JS-AVR-11/06
Mnemonics
POP NOP SLEEP WDR BREAK
Operands
Rd
Description
Pop Register from Stack No Operation Sleep Watchdog Reset Break Rd STACK
Operation
Flags
None None
#Clocks
2 1 1 1 N/A
MCU CONTROL INSTRUCTIONS (see specific descr. for Sleep function) (see specific descr. for WDR/timer) For On-chip Debug Only None None None
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ATmega325/3250/645/6450
2570JS-AVR-11/06
ATmega325/3250/645/6450
Ordering Information
ATmega325
Speed (MHz)(3) Power Supply Ordering Code ATmega325V-8AI ATmega325V-8AU(2) ATmega325V-8MI ATmega325V-8MU(2) ATmega325-16AI ATmega325-16AU(2) ATmega325-16MI ATmega325-16MU(2) Package Type(1) 64A 64A 64M1 64M1 64A 64A 64M1 64M1 Operational Range Industrial (-40C to 85C)
8
1.8 - 5.5V
16
2.7 - 5.5V
Industrial (-40C to 85C)
Notes:
1. This device can also be supplied in wafer form. Please contact your local Atmel sales office for detailed ordering information and minimum quantities. 2. Pb-free packaging alternative, complies to the European Directive for Restriction of Hazardous Substances (RoHS directive). Also Halide free and fully Green. 3. For Speed vs. VCC see Figure 130 on page 292 and Figure 131 on page 293.
Package Type 64A 64M1 100A 64-lead, 14 x 14 x 1.0 mm, Thin Profile Plastic Quad Flat Package (TQFP) 64-pad, 9 x 9 x 1.0 mm, Quad Flat No-Lead/Micro Lead Frame Package (QFN/MLF) 100-lead, 14 x 14 x 1.0 mm, 0.5 mm Lead Pitch, Thin Profile Plastic Quad Flat Package (TQFP)
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2570JS-AVR-11/06
ATmega3250
Speed (MHz)(3) 8 16 Notes: Power Supply 1.8 - 5.5V 2.7 - 5.5V Ordering Code ATmega3250V-8AI ATmega3250V-8AU(2) ATmega3250-16AI ATmega3250-16AU(2) Package Type(1) 100A 100A 100A 100A Operational Range Industrial (-40C to 85C) Industrial (-40C to 85C)
1. This device can also be supplied in wafer form. Please contact your local Atmel sales office for detailed ordering information and minimum quantities. 2. Pb-free packaging alternative, complies to the European Directive for Restriction of Hazardous Substances (RoHS directive). Also Halide free and fully Green. 3. For Speed vs. VCC see Figure 130 on page 292 and Figure 131 on page 293.
Package Type 64A 64M1 100A 64-lead, 14 x 14 x 1.0 mm, Thin Profile Plastic Quad Flat Package (TQFP) 64-pad, 9 x 9 x 1.0 mm, Quad Flat No-Lead/Micro Lead Frame Package (QFN/MLF) 100-lead, 14 x 14 x 1.0 mm, 0.5 mm Lead Pitch, Thin Profile Plastic Quad Flat Package (TQFP)
17
ATmega325/3250/645/6450
2570JS-AVR-11/06
ATmega325/3250/645/6450
ATmega645
Speed (MHz)(3) Power Supply Ordering Code ATmega645V-8AI ATmega645V-8AU(2) ATmega645V-8MI ATmega645V-8MU(2) ATmega645-16AI ATmega645-16AU(2) ATmega645-16MI ATmega645-16MU(2) Package Type(1) 64A 64A 64M1 64M1 64A 64A 64M1 64M1 Operational Range Industrial (-40C to 85C)
8
1.8 - 5.5V
16
2.7 - 5.5V
Industrial (-40C to 85C)
Notes:
1. This device can also be supplied in wafer form. Please contact your local Atmel sales office for detailed ordering information and minimum quantities. 2. Pb-free packaging alternative, complies to the European Directive for Restriction of Hazardous Substances (RoHS directive). Also Halide free and fully Green. 3. For Speed vs. VCC see Figure 130 on page 292 and Figure 131 on page 293.
Package Type 64A 64M1 100A 64-lead, 14 x 14 x 1.0 mm, Thin Profile Plastic Quad Flat Package (TQFP) 64-pad, 9 x 9 x 1.0 mm, Quad Flat No-Lead/Micro Lead Frame Package (QFN/MLF) 100-lead, 14 x 14 x 1.0 mm, 0.5 mm Lead Pitch, Thin Profile Plastic Quad Flat Package (TQFP)
18
2570JS-AVR-11/06
ATmega6450
Speed (MHz)(3) 8 16 Notes: Power Supply 1.8 - 5.5V 2.7 - 5.5V Ordering Code ATmega6450V-8AI ATmega6450V-8AU(2) ATmega6450-16AI ATmega6450-16AU(2) Package Type(1) 100A 100A 100A 100A Operational Range Industrial (-40C to 85C) Industrial (-40C to 85C)
1. This device can also be supplied in wafer form. Please contact your local Atmel sales office for detailed ordering information and minimum quantities. 2. Pb-free packaging alternative, complies to the European Directive for Restriction of Hazardous Substances (RoHS directive). Also Halide free and fully Green. 3. For Speed vs. VCC see Figure 130 on page 292 and Figure 131 on page 293.
Package Type 64A 64M1 100A 64-lead, 14 x 14 x 1.0 mm, Thin Profile Plastic Quad Flat Package (TQFP) 64-pad, 9 x 9 x 1.0 mm, Quad Flat No-Lead/Micro Lead Frame Package (QFN/MLF) 100-lead, 14 x 14 x 1.0 mm, 0.5 mm Lead Pitch, Thin Profile Plastic Quad Flat Package (TQFP)
19
ATmega325/3250/645/6450
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ATmega325/3250/645/6450
Packaging Information
64A
PIN 1 B
PIN 1 IDENTIFIER
e
E1
E
D1 D C
0~7 A1 L
COMMON DIMENSIONS (Unit of Measure = mm) SYMBOL A A1 A2 D D1 E MIN - 0.05 0.95 15.75 13.90 15.75 13.90 0.30 0.09 0.45 NOM - - 1.00 16.00 14.00 16.00 14.00 - - - 0.80 TYP MAX 1.20 0.15 1.05 16.25 14.10 16.25 14.10 0.45 0.20 0.75 Note 2 Note 2 NOTE
A2
A
Notes:
1. This package conforms to JEDEC reference MS-026, Variation AEB. 2. Dimensions D1 and E1 do not include mold protrusion. Allowable protrusion is 0.25 mm per side. Dimensions D1 and E1 are maximum plastic body size dimensions including mold mismatch. 3. Lead coplanarity is 0.10 mm maximum.
E1 B C L e
10/5/2001 2325 Orchard Parkway San Jose, CA 95131 TITLE 64A, 64-lead, 14 x 14 mm Body Size, 1.0 mm Body Thickness, 0.8 mm Lead Pitch, Thin Profile Plastic Quad Flat Package (TQFP) DRAWING NO. 64A REV. B
R
20
2570JS-AVR-11/06
64M1
D
Marked Pin# 1 ID
E
C
TOP VIEW
SEATING PLANE
A1 A
K L D2
Pin #1 Corner
0.08 C
SIDE VIEW
1 2 3
Option A
Pin #1 Triangle
COMMON DIMENSIONS (Unit of Measure = mm) SYMBOL
Option B
Pin #1 Chamfer (C 0.30)
E2
MIN 0.80 - 0.18 8.90 5.20 8.90 5.20
NOM 0.90 0.02 0.25 9.00 5.40 9.00 5.40 0.50 BSC
MAX 1.00 0.05 0.30 9.10 5.60 9.10 5.60
NOTE
A A1 b D
K b e
Option C
D2
Pin #1 Notch (0.20 R)
E E2 e L
BOTTOM VIEW
0.35 1.25
0.40 1.40
0.45 1.55
Note: 1. JEDEC Standard MO-220, (SAW Singulation) Fig. 1, VMMD. 2. Dimension and tolerance conform to ASMEY14.5M-1994.
K
5/25/06 2325 Orchard Parkway San Jose, CA 95131 TITLE 64M1, 64-pad, 9 x 9 x 1.0 mm Body, Lead Pitch 0.50 mm, 5.40 mm Exposed Pad, Micro Lead Frame Package (MLF) DRAWING NO. 64M1 REV. G
R
21
ATmega325/3250/645/6450
2570JS-AVR-11/06
ATmega325/3250/645/6450
100A
PIN 1 B
PIN 1 IDENTIFIER
e
E1
E
D1 D C
0~7 A1 L
COMMON DIMENSIONS (Unit of Measure = mm) SYMBOL A A1 A2 D D1 E MIN - 0.05 0.95 15.75 13.90 15.75 13.90 0.17 0.09 0.45 NOM - - 1.00 16.00 14.00 16.00 14.00 - - - 0.50 TYP MAX 1.20 0.15 1.05 16.25 14.10 16.25 14.10 0.27 0.20 0.75 Note 2 Note 2 NOTE
A2
A
Notes:
1. This package conforms to JEDEC reference MS-026, Variation AED. 2. Dimensions D1 and E1 do not include mold protrusion. Allowable protrusion is 0.25 mm per side. Dimensions D1 and E1 are maximum plastic body size dimensions including mold mismatch. 3. Lead coplanarity is 0.08 mm maximum.
E1 B C L e
10/5/2001 2325 Orchard Parkway San Jose, CA 95131 TITLE 100A, 100-lead, 14 x 14 mm Body Size, 1.0 mm Body Thickness, 0.5 mm Lead Pitch, Thin Profile Plastic Quad Flat Package (TQFP) DRAWING NO. 100A REV. C
R
22
2570JS-AVR-11/06
Errata
ATmega325 Rev. C
* Interrupts may be lost when writing the timer registers in the asynchronous timer 1. Interrupts may be lost when writing the timer registers in the asynchronous timer If one of the timer registers which is synchronized to the asynchronous timer2 clock is written in the cycle before a overflow interrupt occurs, the interrupt may be lost. Problem Fix/ Workaround Always check that the Timer2 Timer/Counter register, TCNT2, does not have the value 0xFF before writing the Timer2 Control Register, TCCR2, or Output Compare Register, OCR2.
ATmega325 Rev. B
Not sampled.
ATmega325 Rev. A
* Interrupts may be lost when writing the timer registers in the asynchronous timer 1. Interrupts may be lost when writing the timer registers in the asynchronous timer If one of the timer registers which is synchronized to the asynchronous timer2 clock is written in the cycle before a overflow interrupt occurs, the interrupt may be lost. Problem Fix/ Workaround Always check that the Timer2 Timer/Counter register, TCNT2, does not have the value 0xFF before writing the Timer2 Control Register, TCCR2, or Output Compare Register, OCR2.
ATmega3250 Rev. C
* Interrupts may be lost when writing the timer registers in the asynchronous timer 1. Interrupts may be lost when writing the timer registers in the asynchronous timer If one of the timer registers which is synchronized to the asynchronous timer2 clock is written in the cycle before a overflow interrupt occurs, the interrupt may be lost. Problem Fix/ Workaround Always check that the Timer2 Timer/Counter register, TCNT2, does not have the value 0xFF before writing the Timer2 Control Register, TCCR2, or Output Compare Register, OCR2.
ATmega3250 Rev. B
Not sampled.
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ATmega325/3250/645/6450
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ATmega325/3250/645/6450
ATmega3250 Rev. A
* Interrupts may be lost when writing the timer registers in the asynchronous timer 1. Interrupts may be lost when writing the timer registers in the asynchronous timer If one of the timer registers which is synchronized to the asynchronous timer2 clock is written in the cycle before a overflow interrupt occurs, the interrupt may be lost. Problem Fix/ Workaround Always check that the Timer2 Timer/Counter register, TCNT2, does not have the value 0xFF before writing the Timer2 Control Register, TCCR2, or Output Compare Register, OCR2.
ATmega645 Rev. A
* Interrupts may be lost when writing the timer registers in the asynchronous timer 1. Interrupts may be lost when writing the timer registers in the asynchronous timer If one of the timer registers which is synchronized to the asynchronous timer2 clock is written in the cycle before a overflow interrupt occurs, the interrupt may be lost. Problem Fix/ Workaround Always check that the Timer2 Timer/Counter register, TCNT2, does not have the value 0xFF before writing the Timer2 Control Register, TCCR2, or Output Compare Register, OCR2.
ATmega6450 Rev. A
* Interrupts may be lost when writing the timer registers in the asynchronous timer 1. Interrupts may be lost when writing the timer registers in the asynchronous timer If one of the timer registers which is synchronized to the asynchronous timer2 clock is written in the cycle before a overflow interrupt occurs, the interrupt may be lost. Problem Fix/ Workaround Always check that the Timer2 Timer/Counter register, TCNT2, does not have the value 0xFF before writing the Timer2 Control Register, TCCR2, or Output Compare Register, OCR2.
24
2570JS-AVR-11/06
Datasheet Revision History
Rev. 2570J - 11/06
Please note that the referring page numbers in this section are referring to this document. The referring revision in this section are referring to the document revision.
1. 2.
Updated Table 125 on page 296. Updated note in Table 125 on page 296.
Rev. 2570I - 07/06
1. 2. 3. 4. 5. 6. Updated Table 33 on page 89. Updated Table 47 on page 94, Table 49 on page 94, Table 54 on page 121, Table 56 on page 122, Table 59 on page 138 and Table 61 on page 139. Updated "Fast PWM Mode" on page 112. Updated Features in "USI - Universal Serial Interface" on page 181. Added "Clock speed considerations." on page 188. Updated "Errata" on page 342.
Rev. 2570H - 06/06
1. 2. 3. Updated "Calibrated Internal RC Oscillator" on page 28. Updated "OSCCAL - Oscillator Calibration Register" on page 29. Added Table 126 on page 296.
Rev. 2570G - 04/06
1. Updated "Calibrated Internal RC Oscillator" on page 28.
Rev. 2570F - 03/06
1. Updated "Errata" on page 340.
Rev. 2570E - 03/06
1. 2. 3. 4. 5. 6. 7. 8. 9. 10 11. 12. 13. Added Addresses in Register Descriptions. Updated number of Genearl Purpose I/O pins. Correction of Bitnames in "Register Summary" on page 10. Added "Resources" on page 8. Updated "Power Management and Sleep Modes" on page 33. Updated "Bit 0 - IVCE: Interrupt Vector Change Enable" on page 51. Updated Introduction in "I/O-Ports" on page 58. Updated "SPI - Serial Peripheral Interface" on page 146. Updated "Bit 6 - ACBG: Analog Comparator Bandgap Select" on page 194. Updated Features in "Analog to Digital Converter" on page 196. Updated "Prescaling and Conversion Timing" on page 199. Updated "ATmega325/3250/645/6450 Boot Loader Parameters" on page 257. Updated "DC Characteristics" on page 290.
25
ATmega325/3250/645/6450
2570JS-AVR-11/06
ATmega325/3250/645/6450
Rev. 2570D - 05/05
1. 2. 3. 4. 5. 6. 7. 8. 9. MLF-package alternative changed to "Quad Flat No-Lead/Micro Lead Frame Package QFN/MLF". Added "Pin Change Interrupt Timing" on page 53. Updated "Signature Bytes" on page 261. Updated Table 121 on page 276. Added Figure 123 on page 277. Updated Figure 92 on page 204 and Figure 116 on page 269. Updated algorithm "Enter Programming Mode" on page 264. Added "Supply Current of I/O modules" on page 301. Updated "Ordering Information" on page 17.
Rev. 2570C - 11/04
1. 2. 3. 4. 5. 6. 7. 8. "Features (Continued)" on page 2 updated. Table 10 on page 29 updated. COM01:0 renamed COM0A1:0 in "8-bit Timer/Counter0 with PWM" on page 83. PRR-bit descripton added to "16-bit Timer/Counter1" on page 99, "SPI - Serial Peripheral Interface" on page 146, and "USART0" on page 155. "Part Number" on page 220 updated. "Typical Characteristics - Preliminary Data" on page 296 updated. "DC Characteristics" on page 290 updated. "Alternate Functions of Port G" on page 74 updated.
Rev. 2570B - 09/04
1. Updated "Ordering Information" on page 17.
Rev. 2570A - 09/04
1. Initial revision.
26
2570JS-AVR-11/06
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