1

Features

– Utilizes Different Array Protection Compared to the AT24C02B

– 1.8 (V

– Endurance: One Million Write Cycles

– Data Retention: 100 Years

Description

The AT24HC02B provides 2048 bits of serial electrically erasable and programmable

read-only memory (EEPROM) organized as 256 words of 8 bits each. The device is opti-

mized for use in many industrial and commercial applications where low-power and low-

voltage operation are essential. The AT24HC02B is available in space-saving 8-lead

PDIP, 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 1.8V (1.8V to 5.5V) version.

Table 1. Pin Configuration

Pin Name

Function

A0–A2

Address Inputs

SDA

Serial Data

SCL

Serial Clock Input

WP

Write Protect

NC

No-connect

Two-wire Serial

EEPROM

2K (256 x 8)

AT24HC02B

Rev. 5134A–SEEPR–9/05

1

2

3

4

8

7

6

5

A0

A1

A2

GND

VCC

WP

SCL

SDA

8-lead PDIP

1

2

3

4

8

7

6

5

A0

A1

A2

GND

VCC

WP

SCL

SDA

8-lead SOIC

1

2

3

4

8

7

6

5

A0

A1

A2

GND

VCC

WP

SCL

SDA

8-lead TSSOP