1

Features

– 2.7 (V

1024 x 8 (8K) or 2048 x 8 (16K)

– Endurance: 1 Million Write Cycles

– Data Retention: 100 Years

Description

The AT24C01A/02/04/08A/16A provides 1024/2048/4096/8192/16384 bits of serial

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

128/256/512/1024/2048 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 AT24C01A/02/04/08A/16A 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 2.7V (2.7V to 5.5V) versions.

Table 1. Pin Configurations

Pin Name

Function

A0

 A2

Address Inputs

SDA

Serial Data

SCL

Serial Clock Input

WP

Write Protect

NC

No Connect

Two-wire

Automotive

Temperature

Serial EEPROM

1K (128 x 8)

2K (256 x 8)

4K (512 x 8)

8K (1024 x 8)

16K (2048 x 8)

AT24C04

AT24C08A

5092D–SEEPR–4/07

1. AT24C01A not recommended

for new design; Replaced by

AT24C01B Automotive.

2. AT24C02 not recommended for

new design; Replaced by

AT24C02B Automotive.

3. AT24C16A not recommended

for new design; replaced by

AT24C16C Automotive.

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