1.

Features

– Endurance: 1 Million Write Cycles

– Data Retention: 100 Years

2.

Description

The AT24C01B/02B/04B/08B provides 1024/2048/4096/8192 bits of serial electrically

erasable and program mable read-only m emory (EEPROM) organized as

128/256/512/1024 words of 8 bits each. The device is optimized for use in many auto-

motive applications where low-power and low-voltage operation are essential. The

AT24C01B/02B/04B/08B is available in space-saving 8-lead JEDEC SOIC and 8-lead

TSSOP packages and is accessed via a two-wire serial interface. In addition, the

entire family is available in 2.5V (2.5V to 5.5V) versions.

Table 2-1.

Pin Configurations

Pin Name

Function

A0

− A2

Address Inputs

SDA

Serial Data

SCL

Serial Clock Input

WP

Write Protect

Two-wire

Automotive

Temperature

Serial EEPROM

1K (128 x 8)

2K (256 x 8)

4K (512 x 8)

8K (1024 x 8)

AT24C01B

AT24C02B

AT24C04B

AT24C08B

8517C–SEEPR–01/09

8-lead SOIC

1

2

3

4

8

7

6

5

A0

A1

A2

GND

VCC

WP

SCL

SDA

8-lead TSSOP

1

2

3

4

8

7

6

5

A0

A1

A2

GND

VCC

WP

SCL

SDA