AT25160B_14 Datasheet, PDF(1/20 Page) ATMEL Corporation – SPI Automotive Temperature Serial EEPROMs

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

AT25160B_14 Datasheet, PDF (1/20 Pages) ATMEL Corporation – SPI Automotive Temperature Serial EEPROMs

Atmel AT25080B, Atmel AT25160B

Atmel AT25320B, Atmel AT25640B

SPI Automotive Temperature Serial EEPROMs

8K (1024 x 8), 16K (2048 x 8), 32K (4096 x 8), 64K (8192 x 8)

Features

DATASHEET

ï¬ Serial Peripheral Interface (SPI) compatible

ï¬ Supports SPI Modes 0 (0,0) and 3 (1,1)

ï¬ Data sheet describes Mode 0 operation

ï¬ Medium-voltage and standard-voltage operation

ï¬ VCC = 2.5V to 5.5V

ï¬ Extended temperature range â40ï°C to 125ï°C

ï¬ 5MHz clock rate

ï¬ 32-byte page mode

ï¬ Block write protection

ï¬ Protect 1/4, 1/2, or entire array

ï¬ Write Protect (WP) pin and Write Disable instructions for both hardware and

software data protection

ï¬ Self-timed write cycle (5ms max)

ï¬ High reliability

ï¬ Endurance: one million write cycles

ï¬ Data retention: 100 years

ï¬ 8-lead JEDEC SOIC and 8-lead TSSOP packages

Description

The AtmelÂ® AT25080B/160B/320B/640B provides 8192/16384/32768/65536 bits of

Serial Electrically-Erasable Programmable Read-Only Memory (EEPROM) organized

as 1024/2048/4096/8192 words of eight bits each. The device is optimized for use in

many automotive applications where low-power and low-voltage operation are

essential. AT25080B/160B/320B/640B is available in space-saving 8-lead JEDEC SOIC

and 8-lead TSSOP packages.

AT25080B/160B/320B/640B is enabled through the Chip Select pin (CS) and accessed

via a 3-wire interface consisting of Serial Data Input (SI), Serial Data Output (SO), and

Serial Clock (SCK). All programming cycles are completely self-timed, and no separate

erase cycle is required before write.

Block write protection is enabled by programming the status register with one of four

blocks of write protection. Separate program enable and program disable instructions

are provided for additional data protection. Hardware data protection is provided via the

WP pin to protect against inadvertent write attempts to the status register. The HOLD

pin may be used to suspend any serial communication without resetting the serial

sequence.

8803CâSEEPROMâ12/2012

▷