25AA160A_B_25LC160A_B| Datasheet

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25AA160A/B, 25LC160A/B
16K SPI Bus Serial EEPROM
Device Selection Table
Part Number 25LC160A 25AA160A 25LC160B 25AA160B VCC Range 2.5-5.5V 1.8-5.5V 2.5-5.5V 1.8-5.5V Page Size 16 Byte 16 Byte 32 Byte 32 Byte Temp. Ranges I,E I I,E I Packages P, SN, ST, MS P, SN, ST, MS P, SN, ST, MS P, SN, ST, MS

Features:
Max. Clock 10 MHz Low-Power CMOS Technology 2048 x 8-bit Organization 16-Byte Page (`A' version devices) 32-Byte Page (`B' version devices) 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: 1,000,000 erase/write cycles - Data retention: > 200 years - ESD protection: > 4000V Temperature Ranges Supported: - Industrial (I): -40 C to +85 C - Automotive (E): -40 C to +125 C

Description:
The Microchip Technology Inc. 25AA160A/B, 25LC160A/B (25XX160A/B*) are 16 Kbit Serial Electrically Erasable PROMs. The memory is accessed via a simple Serial Peripheral Interface (SPI) 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. The 25XX160A/B is available in standard Pb-free packages including 8-lead PDIP and SOIC, and advanced packaging including 8-lead MSOP, and 8-lead TSSOP.

Package Types (not to scale)
TSSOP/MSOP
(ST, MS)
CS SO WP VSS 1 2 3 4 8 7 6 5 VCC HOLD SCK SI

PDIP/SOIC
(P, SN)
CS SO WP VSS 1 2 3 4 8 7 6 5 VCC HOLD SCK SI

Pb-Free and RoHS Compliant

Pin Function Table
Name CS SO WP VSS SI SCK HOLD VCC Function Chip Select Input Serial Data Output Write-Protect Ground Serial Data Input Serial Clock Input Hold Input Supply Voltage
*25XX160A/B is used in this document as a generic part number for the 25AA160A/B, 25LC160A/B devices.

2007 Microchip Technology Inc.

DS21807D-page 1