AT25640AN-10SI-1.8 ATMEL Corporation, AT25640AN-10SI-1.8 Datasheet

AT25640AN-10SI-1.8

Manufacturer Part Number

AT25640AN-10SI-1.8

Description

Manufacturer

ATMEL Corporation

Datasheets

1.AT25640AN-10SQ-2.7.pdf (20 pages)

2.AT25640AN-10SI-1.8.pdf (23 pages)

Specifications of AT25640AN-10SI-1.8

Case

SOP8

Date_code

07+

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Features

•

Description

The AT25080A/160A/320A/640A provides 8192/16384/32768/65536 bits of serial

electrically-erasable programmable read-only memory (EEPROM) organized as

1024/2048/4096/8192 words of 8 bits each. The device is optimized for use in many

automotive applications where low-power and low-voltage operation are essential.

The AT25080A/160A/320A/640A is available in space-saving 8-lead PDIP, 8-lead

JEDEC SOIC and 8-lead TSSOP packages.

The AT25080A/160A/320A/640A is enabled through the Chip Select pin (CS) and

accessed via a three-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.

Table 1. Pin Configurations

Pin Name

SCK

GND

VCC

HOLD

Serial Peripheral Interface (SPI) Compatible

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

Medium-voltage and Standard-voltage Operation

Extended Temperature Range –40°C to 125°C

5.0 MHz Clock Rate

32-byte Page Mode

Block Write Protection

Write Protect (WP) Pin and Write Disable Instructions for Both Hardware and Software

Data Protection

Self-timed Write Cycle (2 ms [5V] typical)

High Reliability

8-lead PDIP, 8-lead JEDEC SOIC Packages and 8-lead TSSOP Packages

– Data Sheet Describes Mode 0 Operation

– 2.7 (V

– Protect 1/4, 1/2, or Entire Array

– Endurance: One Million Write Cycles

– Data Retention: 100 Years

Function

Chip Select

Serial Data Clock

Serial Data Input

Serial Data Output

Ground

Power Supply

Write Protect

Suspends Serial Input

No Connect

Don’t Connect

= 2.7V to 5.5V)

GND

8-lead PDIP

8-lead SOIC

8-lead TSSOP

VCC

HOLD

SCK

VCC

HOLD

SCK

VCC

HOLD

SCK

SPI Serial

Extended

Temperature

EEPROMs

8K (1024 x 8)

16K (2048 x 8)

32K (4096 x 8)

64K (8192 x 8)

AT25080A

AT25160A

AT25320A

AT25640A

5082B–SEEPR–1/05

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