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M
Part Number 25AA160 25LC160 25C160 VCC Range 1.8 - 5.5V 2.5 - 5.5V 4.5 - 5.5V
25AA160/25LC160/25C160
DESCRIPTION
Temp Ranges I I I,E The Microchip Technology Inc. 25AA160/25LC160/ 25C160 (25XX160*) are 16 Kbit Serial Electrically Erasable PROMs. The memory is accessed via a simple Serial Peripheral InterfaceTM (SPITM) compatible serial bus. The bus signals required are a clock input (SCK) plus separate data in (SI) and data out (SO) lines. Access to the device is controlled through a chip select (CS) input. Communication to the device can be paused via the hold pin (HOLD). While the device is paused, transitions on its inputs will be ignored, with the exception of chip select, allowing the host to service higher priority interrupts.
16K SPITM Bus Serial EEPROM
DEVICE SELECTION TABLE
Max Clock Frequency 1 MHz 2 MHz 3 MHz
FEATURES
* Low power CMOS technology - Write current: 3 mA maximum - Read current: 500 A typical - Standby current: 500 nA typical * 2048 x 8-bit organization * 16 byte page * Write cycle time: 5 ms max. * Self-timed ERASE and WRITE cycles * Block write protection - Protect none, 1/4, 1/2 or all of array * Built-in write protection - Power on/off data protection circuitry - Write enable latch - Write protect pin * Sequential read * High reliability - Endurance: 1 M cycles - Data retention: > 200 years - ESD protection: > 4000V * 8-pin PDIP and SOIC packages * Temperature ranges supported: - Industrial (I): - Automotive (E) (25C160): -40C to +85C -40C to +125C
PACKAGE TYPES
PDIP/SOIC CS SO WP VSS 1 25XX160 2 3 4 8 7 6 5 VCC HOLD SCK SI
BLOCK DIAGRAM
Status Register HV Generator
I/O Control Logic
Memory Control Logic
X Dec
EEPROM Array
Page Latches
SI SO CS SCK HOLD WP VCC VSS
*25XX160 is used in this document as a generic part number for the 25AA160/25LC160/25C160 devices. SPITM is a trademark of Motorola Inc.
Y Decoder
Sense Amp. R/W Control
2001 Microchip Technology Inc.
DS21231C-page 1
25AA160/25LC160/25C160
1.0 ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings
VCC.............................................................................................................................................................................7.0V All inputs and outputs w.r.t. VSS .......................................................................................................... -0.6V to VCC+1.0V Storage temperature .................................................................................................................................-65C to 150C Ambient temperature under bias ...............................................................................................................-65C to 125C Soldering temperature of leads (10 seconds) .......................................................................................................+300C ESD protection on all pins ......................................................................................................................................... 4 KV NOTICE: Stresses above those listed under `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 operational listings of this specification is not implied. Exposure to maximum rating conditions for an extended period of time may affect device reliability.
1.1
DC Characteristics
DC Characteristics Industrial (I): TAMB = -40C to +85C VCC = 1.8V to 5.5V Automotive (E):TAMB = -40C to +125C VCC = 4.5V to 5.5V (25C160 only) Min. 2.0 0.7 VCC Low level input voltage Low level output voltage High level output voltage Input leakage current Output leakage current Internal Capacitance (all inputs and outputs) Operating Current -0.3 -0.3 -- -- VCC -0.5 -10 -10 -- -- -- -- -- Standby Current -- -- Max. VCC+1 VCC+1 0.8 0.3 VCC 0.4 0.2 -- 10 10 7 1 500 5 3 5 1 Units V V V V V V V
A A
Param. No. D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 Note:
Sym. VIH1 VIH2 VIL1 VIL2 VOL VOL VOH ILI ILO CINT ICC Read ICC Write ICCS
Characteristics High level input voltage
Conditions VCC 2.7V (Note) VCC< 2.7V (Note) VCC 2.7V (Note) VCC < 2.7V (Note) IOL = 2.1 mA IOL = 1.0 mA, VCC < 2.5V IOH = -400 A CS = VCC, VIN = VSS TO VCC CS = VCC, VOUT = VSS TO VCC TAMB = 25C, CLK = 1.0 MHz, VCC = 5.0V (Note) VCC = 5.5V; FCLK = 3.0 MHz; SO = Open VCC = 2.5V; FCLK = 2.0 MHz; SO = Open VCC = 5.5V VCC = 2.5V CS = VCC = 5.5V, Inputs tied to VCC or VSS CS = VCC = 2.5V, Inputs tied to VCC or VSS
pF mA A mA mA
A A
This parameter is periodically sampled and not 100% tested.
DS21231C-page 2
2001 Microchip Technology Inc.
25AA160/25LC160/25C160
1.2 AC Characteristics
AC Characteristics Param. No. 1 Sym. FCLK Characteristic Clock Frequency Industrial (I): TAMB = -40C to +85C Automotive (E): TAMB = -40C to +125C Min. -- -- -- 100 250 500 150 250 475 500 30 50 50 50 100 100 -- -- 150 230 475 150 230 475 50 50 Clock -- -- -- 0 -- -- -- 100 100 200 100 100 200 100 150 200 100 150 200 -- 1M Max. 3 2 1 -- -- -- -- -- -- -- -- -- -- -- -- -- 2 2 -- -- -- -- -- -- -- -- 150 230 475 -- 200 250 500 -- -- -- -- -- -- -- -- -- -- -- -- 5 -- Units MHz MHz MHz ns ns ns ns ns ns ns ns ns ns ns ns ns
s s
VCC = 1.8V to 5.5V VCC = 4.5V to 5.5V (25C160 only) Conditions
VCC = 4.5V to 5.5V VCC = 2.5V to 4.5V VCC = 1.8V to 2.5V VCC = 4.5V to 5.5V VCC = 2.5V to 4.5V VCC = 1.8V to 2.5V VCC = 4.5V to 5.5V VCC = 2.5V to 4.5V VCC = 1.8V to 2.5V -- VCC = 4.5V to 5.5V VCC = 2.5V to 4.5V VCC = 1.8V to 2.5V VCC = 4.5V to 5.5V VCC = 2.5V to 4.5V VCC = 1.8V to 2.5V (Note 1) (Note 1) VCC = 4.5V to 5.5V VCC = 2.5V to 4.5V VCC = 1.8V to 2.5V VCC = 4.5V to 5.5V VCC = 2.5V to 4.5V VCC = 1.8V to 2.5V -- -- VCC = 4.5V to 5.5V VCC = 2.5V to 4.5V VCC = 1.8V to 2.5V (Note 1) VCC = 4.5V to 5.5V (Note 1) VCC = 2.5V to 4.5V (Note 1) VCC = 1.8V to 2.5V (Note 1) VCC = 4.5V to 5.5V VCC = 2.5V to 4.5V VCC = 1.8V to 2.5V VCC = 4.5V to 5.5V VCC = 2.5V to 4.5V VCC = 1.8V to 2.5V VCC = 4.5V to 5.5V (Note 1) VCC = 2.5V to 4.5V (Note 1) VCC = 1.8V to 2.5V (Note 1) VCC = 4.5V to 5.5V VCC = 2.5V to 4.5V VCC = 1.8V to 2.5V -- (Note 2)
2
TCSS
CS Setup Time
3
TCSH
CS Hold Time
4 5
TCSD TSU
CS Disable Time Data Setup Time
6
THD
Data Hold Time
7 8 9
TR TF THI
CLK Rise Time CLK Fall Time Clock High Time
ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ms E/W Cycles
10
TLO
Clock Low Time
11 12 13
TCLD TCLE TV
Clock Delay Time Clock Enable Time Output Valid from Low Output Hold Time Output Disable Time
14 15
THO TDIS
16
THS
HOLD Setup Time
17
THH
HOLD Hold Time
18
THZ
HOLD Low to Output High-Z
19
THV
HOLD High to Output Valid
20 21
TWC --
Internal Write Cycle Time Endurance
Note 1: This parameter is periodically sampled and not 100% tested. 2: This parameter is not tested but ensured by characterization. For endurance estimates in a specific application, please consult the Total Endurance Model which can be obtained on our website: www.microchip.com.
2001 Microchip Technology Inc.
DS21231C-page 3
25AA160/25LC160/25C160
FIGURE 1-1:
CS 16 SCK 18 SO n+2 n+1 n high impedance 5 n n-1 19 n n-1 17 16 17
HOLD TIMING
don't care SI HOLD n+2 n+1 n
FIGURE 1-2:
SERIAL INPUT TIMING
4 CS 2 Mode 1,1 SCK Mode 0,0 5 SI MSB in 6 LSB in 7 11 8 3 12
SO
high impedance
FIGURE 1-3:
SERIAL OUTPUT TIMING
CS 9 SCK 13 14 SO MSB out 15 ISB out 10 3 Mode 1,1 Mode 0,0
SI
don't care
DS21231C-page 4
2001 Microchip Technology Inc.
25AA160/25LC160/25C160
1.3 AC Test Conditions
VLO = 0.2V VHI = VCC - 0.2V VHI = 4.0V Input Output Note 1: For VCC 4.0V 2: For VCC > 4.0V -- (Note 1) (Note 2) SO 0.5 VCC 0.5 VCC 1.8 K 100 pF 2.25 K
FIGURE 1-4:
AC TEST CIRCUIT
VCC
AC Waveform:
Timing Measurement Reference Level
2001 Microchip Technology Inc.
DS21231C-page 5
25AA160/25LC160/25C160
2.0 PIN DESCRIPTIONS
PIN FUNCTION TABLE
SOIC 1 2 3 4 5 6 7 8 Description Chip Select Input Serial Data Output Write Protect Pin Ground Serial Data Input Serial Clock Input Hold Input Supply Voltage
2.4
Serial Input (SI)
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1:
Name CS SO WP VSS SI SCK HOLD VCC PDIP 1 2 3 4 5 6 7 8
The SI pin is used to transfer data into the device. It receives instructions, addresses and data. Data is latched on the rising edge of the serial clock.
2.5
Serial Clock (SCK)
The SCK is used to synchronize the communication between a master and the 25XX160. Instructions, addresses, or data present on the SI pin are latched on the rising edge of the clock input, while data on the SO pin is updated after the falling edge of the clock input.
2.6
Hold (HOLD)
2.1
Chip Select (CS)
A low level on this pin selects the device. A high level deselects the device and forces it into standby mode. However, a programming cycle which is already initiated or in progress will be completed, regardless of the CS input signal. If CS is brought high during a program cycle, the device will go into standby mode as soon as the programming cycle is complete. When the device is deselected, SO goes to the high impedance state, allowing multiple parts to share the same SPI bus. A low to high transition on CS after a valid write sequence initiates an internal write cycle. After power-up, a low level on CS is required prior to any sequence being initiated.
The HOLD pin is used to suspend transmission to the 25XX160 while in the middle of a serial sequence without having to retransmit the entire sequence again. It must be held high any time this function is not being used. Once the device is selected and a serial sequence is underway, the HOLD pin may be pulled low to pause further serial communication without resetting the serial sequence. The HOLD pin must be brought low while SCK is low, otherwise the HOLD function will not be invoked until the next SCK high to low transition. The 25XX160 must remain selected during this sequence. The SI, SCK, and SO pins are in a high impedance state during the time the device is paused and transitions on these pins will be ignored. To resume serial communication, HOLD must be brought high while the SCK pin is low, otherwise serial communication will not resume. Lowering the HOLD line at any time will tri-state the SO line.
2.2
Serial Output (SO)
The SO pin is used to transfer data out of the 25XX160. During a read cycle, data is shifted out on this pin after the falling edge of the serial clock.
2.3
Write Protect (WP)
This pin is used in conjunction with the WPEN bit in the status register to prohibit writes to the nonvolatile bits in the status register. When WP is low and WPEN is high, writing to the nonvolatile bits in the status register is disabled. All other operations function normally. When WP is high, all functions, including writes to the nonvolatile bits in the status register operate normally. If the WPEN bit is set, WP low during a status register write sequence will disable writing to the status register. If an internal write cycle has already begun, WP going low will have no effect on the write. The WP pin function is blocked when the WPEN bit in the status register is low. This allows the user to install the 25XX160 in a system with WP pin grounded and still be able to write to the status register. The WP pin functions will be enabled when the WPEN bit is set high.
DS21231C-page 6
2001 Microchip Technology Inc.
25AA160/25LC160/25C160
3.0
3.1
FUNCTIONAL DESCRIPTION
Principles of Operation
3.3
Write Sequence
The 25XX160 are 2048 byte Serial EEPROMs designed to interface directly with the Serial Peripheral Interface (SPI) port of many of today's popular microcontroller families, including Microchip's PIC16C6X/7X microcontrollers. It may also interface with microcontrollers that do not have a built-in SPI port by using discrete I/O lines programmed properly with the software. The 25XX160 contains an 8-bit instruction register. The device is accessed via the SI pin, with data being clocked in on the rising edge of SCK. The CS pin must be low and the HOLD pin must be high for the entire operation. The WP pin must be held high to allow writing to the memory array. Table 3-1 contains a list of the possible instruction bytes and format for device operation. All instructions, addresses, and data are transferred MSB first, LSB last. Data is sampled on the first rising edge of SCK after CS goes low. If the clock line is shared with other peripheral devices on the SPI bus, the user can assert the HOLD input and place the 25XX160 in `HOLD' mode. After releasing the HOLD pin, operation will resume from the point when the HOLD was asserted.
Prior to any attempt to write data to the 25XX160, the write enable latch must be set by issuing the WREN instruction (Figure 3-4). This is done by setting CS low and then clocking out the proper instruction into the 25XX160. After all eight bits of the instruction are transmitted, the CS must be brought high to set the write enable latch. If the write operation is initiated immediately after the WREN instruction without CS being brought high, the data will not be written to the array because the write enable latch will not have been properly set. Once the write enable latch is set, the user may proceed by setting the CS low, issuing a write instruction, followed by the 16-bit address, with the five MSBs of the address being don't care bits, and then the data to be written. Up to 16 bytes of data can be sent to the 25XX160 before a write cycle is necessary. The only restriction is that all of the bytes must reside in the same page. A page address begins with XXXX XXXX XXXX 0000 and ends with XXXX XXXX XXXX 1111. If the internal address counter reaches XXXX XXXX XXXX 1111 and the clock continues, the counter will roll back to the first address of the page and overwrite any data in the page that may have been written. For the data to be actually written to the array, the CS must be brought high after the least significant bit (D0) of the nth data byte has been clocked in. If CS is brought high at any other time, the write operation will not be completed. Refer to Figure 3-2 and Figure 3-3 for more detailed illustrations on the byte write sequence and the page write sequence respectively. While the write is in progress, the status register may be read to check the status of the WPEN, WIP, WEL, BP1, and BP0 bits (Figure 3-6). A read attempt of a memory array location will not be possible during a write cycle. When the write cycle is completed, the write enable latch is reset.
3.2
Read Sequence
The device is selected by pulling CS low. The 8-bit read instruction is transmitted to the 25XX160 followed by the 16-bit address, with the five MSBs of the address being don't care bits. After the correct read instruction and address are sent, the data stored in the memory at the selected address is shifted out on the SO pin. The data stored in the memory at the next address can be read sequentially by continuing to provide clock pulses. The internal address pointer is automatically incremented to the next higher address after each byte of data is shifted out. When the highest address is reached (07FFh), the address counter rolls over to address 0000h allowing the read cycle to be continued indefinitely. The read operation is terminated by raising the CS pin (Figure 3-1).
TABLE 3-1:
READ WRITE WRDI WREN RDSR WRSR
INSTRUCTION SET
Instruction Format Description Read data from memory array beginning at selected address Write data to memory array beginning at selected address Reset the write enable latch (disable write operations) Set the write enable latch (enable write operations) Read status register Write status register
Instruction Name
0000 0011 0000 0010 0000 0100 0000 0110 0000 0101 0000 0001
2001 Microchip Technology Inc.
DS21231C-page 7
25AA160/25LC160/25C160
FIGURE 3-1:
CS 0 SCK instruction SI 0 0 0 0 0 0 1 16-bit address 1 15 14 13 12 2 1 0 data out 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 11 21 22 23 24 25 26 27 28 29 30 31
READ SEQUENCE
high impedance SO
FIGURE 3-2:
BYTE WRITE SEQUENCE
CS Twc 0 SCK instruction SI 0 0 0 0 0 0 1 16-bit address 0 15 14 13 12 2 1 0 7 6 data byte 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 11 21 22 23 24 25 26 27 28 29 30 31
high impedance SO
FIGURE 3-3:
CS 0 SCK 1
PAGE WRITE SEQUENCE
2
3
4
5
6
7
8
9 10 11
21 22 23 24 25 26 27 28 29 30 31
instruction SI 0 0 0 0 0 01
16-bit address 0 15 14 13 12 2 1 0 7 6
data byte 1 5 4 3 2 1 0
CS 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 SCK data byte 2 SI 7 6 5 4 3 2 1 0 7 6 data byte 3 5 4 3 2 1 0 7 data byte n (16 max) 6 5 4 3 2 1 0
DS21231C-page 8
2001 Microchip Technology Inc.
25AA160/25LC160/25C160
3.4 Write Enable (WREN) and Write Disable (WRDI)
The following is a list of conditions under which the write enable latch will be reset: * * * * Power-up WRDI instruction successfully executed WRSR instruction successfully executed WRITE instruction successfully executed
The 25XX160 contains a write enable latch. See Table 3-3 for the Write Protect Functionality Matrix. This latch must be set before any write operation will be completed internally. The WREN instruction will set the latch, and the WRDI will reset the latch.
FIGURE 3-4:
WRITE ENABLE SEQUENCE
CS 0 SCK 1 2 3 4 5 6 7
SI
0
0
0
0
0
1
1
0
high impedance SO
FIGURE 3-5:
WRITE DISABLE SEQUENCE
CS 0 SCK 1 2 3 4 5 6 7
SI
0
0
0
0
0
1
0 1
0
high impedance SO
2001 Microchip Technology Inc.
DS21231C-page 9
25AA160/25LC160/25C160
3.5 Read Status Register (RDSR)
The Read Status Register (RDSR) instruction provides access to the status register. The status register may be read at any time, even during a write cycle. The status register is formatted as follows: 7 WPEN 6 X 5 X 4 X 3 BP1 2 BP0 1 WEL 0 WIP The Write Enable Latch (WEL) bit indicates the status of the write enable latch. When set to a `1', the latch allows writes to the array, when set to a `0', the latch prohibits writes to the array. The state of this bit can always be updated via the WREN or WRDI commands regardless of the state of write protection on the status register. This bit is read only. The Block Protection (BP0 and BP1) bits indicate which blocks are currently write protected. These bits are set by the user issuing the WRSR instruction. These bits are nonvolatile. See Figure 3-6 for the RDSR timing sequence.
The Write-In-Process (WIP) bit indicates whether the 25XX160 is busy with a write operation. When set to a `1', a write is in progress, when set to a `0', no write is in progress. This bit is read only.
FIGURE 3-6:
READ STATUS REGISTER TIMING SEQUENCE
CS 0 SCK instruction SI 0 0 0 0 0 1 0 1 data from status register 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
high impedance SO
DS21231C-page 10
2001 Microchip Technology Inc.
25AA160/25LC160/25C160
3.6 Write Status Register (WRSR)
The Write Status register (WRSR) instruction allows the user to select one of four levels of protection for the array by writing to the appropriate bits in the status register. The array is divided up into four segments. The user has the ability to write protect none, one, two or all four of the segments of the array. The partitioning is controlled as shown in Table 3-2. The Write Protect Enable (WPEN) bit is a nonvolatile bit that is available as an enable bit for the WP pin. The Write Protect (WP) pin and the Write Protect Enable (WPEN) bit in the status register control the programmable hardware write protect feature. Hardware write protection is enabled when WP pin is low and the WPEN bit is high. Hardware write protection is disabled when either the WP pin is high or the WPEN bit is low. When the chip is hardware write protected, only writes to nonvolatile bits in the status register are disabled. See Table 3-3 for a matrix of functionality on the WPEN bit. See Figure 3-7 for the WRSR timing sequence.
TABLE 3-2:
BP1
ARRAY PROTECTION
BP0 Array Addresses Write Protected none upper 1/4 (0600h - 07FFh) upper 1/2 (0400h - 07FFh) all (0000h - 07FFh)
0 0 1 1
0 1 0 1
FIGURE 3-7:
CS
WRITE STATUS REGISTER TIMING SEQUENCE
0 SCK
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
instruction SI 0 0 0 0 0 0 0 1 7 6
data to status register 5 4 3 2 1 0
high impedance SO
2001 Microchip Technology Inc.
DS21231C-page 11
25AA160/25LC160/25C160
3.7 Data Protection 3.8
* * * *
Power On State
The following protection has been implemented to prevent inadvertent writes to the array: * The write enable latch is reset on power-up * A write enable instruction must be issued to set the write enable latch * After a byte write, page write, or status register write, the write enable latch is reset * CS must be set high after the proper number of clock cycles to start an internal write cycle * Access to the array during an internal write cycle is ignored and programming is continued
The 25XX160 powers on in the following state: The device is in low power standby mode (CS = 1) The write enable latch is reset SO is in high impedance state A low level on CS is required to enter active state
TABLE 3-3:
WPEN
WRITE PROTECT FUNCTIONALITY MATRIX
WP WEL Protected Blocks Protected Protected Protected Protected Unprotected Blocks Protected Writable Writable Writable Status Register Protected Writable Protected Writable
X 0 1 X
X X
Low High
0 1 1 1
DS21231C-page 12
2001 Microchip Technology Inc.
25AA160/25LC160/25C160
4.0
4.1
PACKAGING INFORMATION
Package Marking Information
8-Lead PDIP (300 mil)
XXXXXXXX XXXXXNNN YYWW
Example:
25LC160 I/PNNN YYWW
8-Lead SOIC (150 mil)
XXXXXXXX XXXXYYWW NNN
Example:
25C160 I/SNYYWW NNN
Legend:
XX...X Y YY WW NNN
Customer specific information* Year code (last digit of calendar year) Year code (last 2 digits of calendar year) Week code (week of January 1 is week `01') Alphanumeric traceability code
Note:
In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line thus limiting the number of available characters for customer specific information.
*
Standard PICmicro device marking consists of Microchip part number, year code, week code, and traceability code. For PICmicro device marking beyond this, certain price adders apply. Please check with your Microchip Sales Office. For QTP devices, any special marking adders are included in QTP price.
2001 Microchip Technology Inc.
DS21231C-page 13
25AA160/25LC160/25C160
8-Lead Plastic Dual In-line (P) - 300 mil (PDIP)
E1
D 2 n 1 E
A
A2
c
L A1
eB
B1 p B
Number of Pins Pitch Top to Seating Plane Molded Package Thickness Base to Seating Plane Shoulder to Shoulder Width Molded Package Width Overall Length Tip to Seating Plane Lead Thickness Upper Lead Width Lower Lead Width Overall Row Spacing Mold Draft Angle Top Mold Draft Angle Bottom * Controlling Parameter Significant Characteristic
Units Dimension Limits n p A A2 A1 E E1 D L c B1 B eB
MIN
INCHES* NOM 8 .100 .155 .130 .313 .250 .373 .130 .012 .058 .018 .370 10 10
MAX
MIN
.140 .115 .015 .300 .240 .360 .125 .008 .045 .014 .310 5 5
.170 .145 .325 .260 .385 .135 .015 .070 .022 .430 15 15
MILLIMETERS NOM 8 2.54 3.56 3.94 2.92 3.30 0.38 7.62 7.94 6.10 6.35 9.14 9.46 3.18 3.30 0.20 0.29 1.14 1.46 0.36 0.46 7.87 9.40 5 10 5 10
MAX
4.32 3.68 8.26 6.60 9.78 3.43 0.38 1.78 0.56 10.92 15 15
Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010" (0.254mm) per side. JEDEC Equivalent: MS-001 Drawing No. C04-018
DS21231C-page 14
2001 Microchip Technology Inc.
25AA160/25LC160/25C160
8-Lead Plastic Small Outline (SN) - Narrow, 150 mil (SOIC)
E E1
p
D 2 B n 1
h 45
c A A2
L A1
Number of Pins Pitch Overall Height Molded Package Thickness Standoff Overall Width Molded Package Width Overall Length Chamfer Distance Foot Length Foot Angle Lead Thickness Lead Width Mold Draft Angle Top Mold Draft Angle Bottom * Controlling Parameter Significant Characteristic
Units Dimension Limits n p A A2 A1 E E1 D h L c B
MIN
.053 .052 .004 .228 .146 .189 .010 .019 0 .008 .013 0 0
INCHES* NOM 8 .050 .061 .056 .007 .237 .154 .193 .015 .025 4 .009 .017 12 12
MAX
MIN
.069 .061 .010 .244 .157 .197 .020 .030 8 .010 .020 15 15
MILLIMETERS NOM 8 1.27 1.35 1.55 1.32 1.42 0.10 0.18 5.79 6.02 3.71 3.91 4.80 4.90 0.25 0.38 0.48 0.62 0 4 0.20 0.23 0.33 0.42 0 12 0 12
MAX
1.75 1.55 0.25 6.20 3.99 5.00 0.51 0.76 8 0.25 0.51 15 15
Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010" (0.254mm) per side. JEDEC Equivalent: MS-012 Drawing No. C04-057
2001 Microchip Technology Inc.
DS21231C-page 15
25AA160/25LC160/25C160
ON-LINE SUPPORT
Microchip provides on-line support on the Microchip World Wide Web (WWW) site. The web site is used by Microchip as a means to make files and information easily available to customers. To view the site, the user must have access to the Internet and a web browser, such as Netscape(R) or Microsoft(R) Explorer. Files are also available for FTP download from our FTP site.
Systems Information and Upgrade Hot Line
The Systems Information and Upgrade Line provides system users a listing of the latest versions of all of Microchip's development systems software products. Plus, this line provides information on how customers can receive any currently available upgrade kits.The Hot Line Numbers are: 1-800-755-2345 for U.S. and most of Canada, and 1-480-792-7302 for the rest of the world.
Connecting to the Microchip Internet Web Site
The Microchip web site is available by using your favorite Internet browser to attach to: www.microchip.com The file transfer site is available by using an FTP service to connect to: ftp://ftp.microchip.com The web site and file transfer site provide a variety of services. Users may download files for the latest Development Tools, Data Sheets, Application Notes, User's Guides, Articles and Sample Programs. A variety of Microchip specific business information is also available, including listings of Microchip sales offices, distributors and factory representatives. Other data available for consideration is: * Latest Microchip Press Releases * Technical Support Section with Frequently Asked Questions * Design Tips * Device Errata * Job Postings * Microchip Consultant Program Member Listing * Links to other useful web sites related to Microchip Products * Conferences for products, Development Systems, technical information and more * Listing of seminars and events
013001
DS21231C-page 16
2001 Microchip Technology Inc.
25AA160/25LC160/25C160
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) 792-7578. Please list the following information, and use this outline to provide us with your comments about this Data Sheet. To: RE: Technical Publications Manager Reader Response Total Pages Sent
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Device: 25AA160/25LC160/25C160 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 data sheet easy to follow? If not, why?
4. What additions to the data sheet do you think would enhance the structure and subject?
5. What deletions from the data sheet 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?
8. How would you improve our software, systems, and silicon products?
2001 Microchip Technology Inc.
DS21231C-page 17
25AA160/25LC160/25C160
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 /XX Examples: a) b) Device: 25AA160: 16 Kbit 1.8V SPI Serial EEPROM 25AA160T:16 Kbit 1.8V SPI Serial EEPROM (Tape and Reel) 25LC160: 16 Kbit 2.5V SPI Serial EEPROM 25LC160T:16 Kbit 2.5V SPI Serial EEPROM (Tape and Reel) 25C160: 16 Kbit 5.0V SPI Serial EEPROM 25C160T: 16 Kbit 5.0V SPI Serial EEPROM (Tape and Reel) I E = = -40C to+85C -40C to+125C Plastic DIP (300 mil body), 8-lead Plastic SOIC (150 mil body), 8-lead 25AA160-I/P: Industrial Temp., PDIP package 25AA160-I/SN: Industrial Temp., SOIC package 25LC160-I/SN: Industrial Temp., SOIC package 25LC160T-I/SN: Tape and Reel, Industrial Temp., SOIC package 25C160-E/P: Extended Temp., PDIP package 25C160-E/SN: Extended Temp., SOIC package
Temperature Package Range
c) d)
e) f)
Temperature Range: Package:
P= SN =
Sales and Support
Data Sheets Products supported by a preliminary Data Sheet may have an errata sheet describing minor operational differences and recommended workarounds. To determine if an errata sheet exists for a particular device, please contact one of the following: 1. 2. 3. Your local Microchip sales office The Microchip Corporate Literature Center U.S. FAX: (480) 792-7277 The Microchip Worldwide Site (www.microchip.com)
Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using. New Customer Notification System Register on our web site (www.microchip.com/cn) to receive the most current information on our products.
DS21231C-page 18
2001 Microchip Technology Inc.
25AA160/25LC160/25C160
"All rights reserved. Copyright (c) 2001, Microchip Technology Incorporated, USA. Information contained in this publication regarding device applications and the like is intended through suggestion only and may be superseded by updates. No representation or warranty is given and no liability is assumed by Microchip Technology Incorporated with respect to the accuracy or use of such information, or infringement of patents or other intellectual property rights arising from such use or otherwise. Use of Microchip's products as critical components in life support systems is not authorized except with express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, under any intellectual property rights. The Microchip logo and name are registered trademarks of Microchip Technology Inc. in the U.S.A. and other countries. All rights reserved. All other trademarks mentioned herein are the property of their respective companies. No licenses are conveyed, implicitly or otherwise, under any intellectual property rights."
Trademarks The Microchip name, logo, PIC, PICmicro, PICMASTER, PICSTART, PRO MATE, KEELOQ, SEEVAL, MPLAB and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. Total Endurance, ICSP, In-Circuit Serial Programming, FilterLab, MXDEV, microID, FlexROM, fuzzyLAB, MPASM, MPLINK, MPLIB, PICDEM, ICEPIC, Migratable Memory, FanSense, ECONOMONITOR, SelectMode and microPort are trademarks of Microchip Technology Incorporated in the U.S.A. Serialized Quick Term Programming (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) 2001, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved.
Microchip received QS-9000 quality system certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona in July 1999. The Company's quality system processes and procedures are QS-9000 compliant for its PICmicro(R) 8-bit MCUs, KEELOQ(R) code hopping devices, Serial EEPROMs and microperipheral products. In addition, Microchip's quality system for the design and manufacture of development systems is ISO 9001 certified.
2001 Microchip Technology Inc.
DS21231C-page 19
M
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: 480-792-7627 Web Address: http://www.microchip.com
New York
150 Motor Parkway, Suite 202 Hauppauge, NY 11788 Tel: 631-273-5305 Fax: 631-273-5335
ASIA/PACIFIC (continued)
Korea
Microchip Technology Korea 168-1, Youngbo Bldg. 3 Floor Samsung-Dong, Kangnam-Ku Seoul, Korea Tel: 82-2-554-7200 Fax: 82-2-558-5934
San Jose
Microchip Technology Inc. 2107 North First Street, Suite 590 San Jose, CA 95131 Tel: 408-436-7950 Fax: 408-436-7955
Rocky Mountain
2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7966 Fax: 480-792-7456
Singapore
Microchip Technology Singapore Pte Ltd. 200 Middle Road #07-02 Prime Centre Singapore, 188980 Tel: 65-334-8870 Fax: 65-334-8850
Toronto
6285 Northam Drive, Suite 108 Mississauga, Ontario L4V 1X5, Canada Tel: 905-673-0699 Fax: 905-673-6509
Atlanta
500 Sugar Mill Road, Suite 200B Atlanta, GA 30350 Tel: 770-640-0034 Fax: 770-640-0307
Taiwan
Austin
Analog Product Sales 8303 MoPac Expressway North Suite A-201 Austin, TX 78759 Tel: 512-345-2030 Fax: 512-345-6085
ASIA/PACIFIC
Australia
Microchip Technology Australia Pty Ltd Suite 22, 41 Rawson Street Epping 2121, NSW Australia Tel: 61-2-9868-6733 Fax: 61-2-9868-6755
Microchip Technology Taiwan 11F-3, No. 207 Tung Hua North Road Taipei, 105, Taiwan Tel: 886-2-2717-7175 Fax: 886-2-2545-0139
Boston
2 Lan Drive, Suite 120 Westford, MA 01886 Tel: 978-692-3848 Fax: 978-692-3821
EUROPE
Denmark
Microchip Technology Denmark ApS Regus Business Centre Lautrup hoj 1-3 Ballerup DK-2750 Denmark Tel: 45 4420 9895 Fax: 45 4420 9910
China - Beijing
Microchip Technology Beijing Office Unit 915 New China Hong Kong Manhattan Bldg. No. 6 Chaoyangmen Beidajie Beijing, 100027, No. China Tel: 86-10-85282100 Fax: 86-10-85282104
Boston
Analog Product Sales Unit A-8-1 Millbrook Tarry Condominium 97 Lowell Road Concord, MA 01742 Tel: 978-371-6400 Fax: 978-371-0050
China - Shanghai
Microchip Technology Shanghai Office Room 701, Bldg. B Far East International Plaza No. 317 Xian Xia Road Shanghai, 200051 Tel: 86-21-6275-5700 Fax: 86-21-6275-5060
France
Arizona Microchip Technology SARL Parc d'Activite du Moulin de Massy 43 Rue du Saule Trapu Batiment A - ler Etage 91300 Massy, France Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79
Chicago
333 Pierce Road, Suite 180 Itasca, IL 60143 Tel: 630-285-0071 Fax: 630-285-0075
Dallas
4570 Westgrove Drive, Suite 160 Addison, TX 75001 Tel: 972-818-7423 Fax: 972-818-2924
Hong Kong
Microchip Asia Pacific RM 2101, Tower 2, Metroplaza 223 Hing Fong Road Kwai Fong, N.T., Hong Kong Tel: 852-2401-1200 Fax: 852-2401-3431
Germany
Arizona Microchip Technology GmbH Gustav-Heinemann Ring 125 D-81739 Munich, Germany Tel: 49-89-627-144 0 Fax: 49-89-627-144-44
Dayton
Two Prestige Place, Suite 130 Miamisburg, OH 45342 Tel: 937-291-1654 Fax: 937-291-9175
Germany
Analog Product Sales Lochhamer Strasse 13 D-82152 Martinsried, Germany Tel: 49-89-895650-0 Fax: 49-89-895650-22
India
Microchip Technology Inc. India Liaison Office Divyasree Chambers 1 Floor, Wing A (A3/A4) No. 11, O'Shaugnessey Road Bangalore, 560 025, India Tel: 91-80-2290061 Fax: 91-80-2290062
Detroit
Tri-Atria Office Building 32255 Northwestern Highway, Suite 190 Farmington Hills, MI 48334 Tel: 248-538-2250 Fax: 248-538-2260
Italy
Arizona Microchip Technology SRL Centro Direzionale Colleoni Palazzo Taurus 1 V. Le Colleoni 1 20041 Agrate Brianza Milan, Italy Tel: 39-039-65791-1 Fax: 39-039-6899883
Los Angeles
18201 Von Karman, Suite 1090 Irvine, CA 92612 Tel: 949-263-1888 Fax: 949-263-1338
Japan
Microchip Technology Intl. Inc. Benex S-1 6F 3-18-20, Shinyokohama Kohoku-Ku, Yokohama-shi Kanagawa, 222-0033, Japan Tel: 81-45-471- 6166 Fax: 81-45-471-6122
Mountain View
Analog Product Sales 1300 Terra Bella Avenue Mountain View, CA 94043-1836 Tel: 650-968-9241 Fax: 650-967-1590
United Kingdom
Arizona Microchip Technology Ltd. 505 Eskdale Road Winnersh Triangle Wokingham Berkshire, England RG41 5TU Tel: 44 118 921 5869 Fax: 44-118 921-5820
01/30/01
All rights reserved. (c) 2001 Microchip Technology Incorporated. Printed in the USA. 5/01
Printed on recycled paper.
Information contained in this publication regarding device applications and the like is intended through suggestion only and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. No representation or warranty is given and no liability is assumed by Microchip Technology Incorporated with respect to the accuracy or use of such information, or infringement of patents or other intellectual property rights arising from such use or otherwise. Use of Microchip's products as critical components in life support systems is not authorized except with express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, except as maybe explicitly expressed herein, under any intellectual property rights. The Microchip logo and name are registered trademarks of Microchip Technology Inc. in the U.S.A. and other countries. All rights reserved. All other trademarks mentioned herein are the property of their respective companies.
DS21231C-page 20
2001 Microchip Technology Inc.

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