1

LCC

Top View

Features

– Internal Address and Data Latches for 256 Bytes

– Internal Control Timer

– Page Write Cycle Time - 10 ms Maximum

– 1 to 256 Byte Page Write Operation

– 80 mA Active Current

– Endurance: 10,000 Cycles

– Data Retention: 10 Years

± 10% Supply

Description

The AT28C040 is a high-performance electrically erasable and programmable read

only memory (E

8 bits. Manufactured with Atmel's advanced nonvolatile CMOS technology, the device

offers access times to 200 ns with power dissipation of just 440 mW.

Rev. 0542B–04/98

AT28C040 4-

Megabit (512K x

8) Paged

E

Pin Configurations

Pin Name

Function

A0 - A18

Addresses

CE

Chip Enable

OE

Output Enable

WE

Write Enable

I/O0 - I/O7

Data Inputs/Outputs

NC

No Connect

SIDE BRAZE,

FLATPACK

Top View

(continued)

4-Megabit

(512K x 8)

Paged E

AT28C040