© 1998 Microchip Technology Inc.

DS11183E-page 1

24C04A

FEATURES

• Low power CMOS technology

• Hardware write protect

• 5.0V only operation

• Self-timed write cycle (including auto-erase)

• Page-write buffer

• 1 ms write cycle time for single byte

• 1,000,000 Erase/Write cycles guaranteed

• Data retention >200 years

• 8-pin DIP/SOIC packages

• Available for extended temperature ranges

DESCRIPTION

The Microchip Technology Inc. 24C04A is a 4K bit

Electrically Erasable PROM. The device is organized

as with a standard two wire serial interface. Advanced

CMOS technology allows a significant reduction in

power over NMOS serial devices. A special feature

provides hardware write protection for the upper half of

the block. The 24C04A has a page write capability of

up to eight bytes, and up to four 24C04A devices may

be connected to the same two wire bus.

This device offers fast (1ms) byte write and

extended (-40

°C to 125°C) temperature operation.

It is recommended that all other applications use

Microchip’s 24LC04B.

- Commercial (C):

0˚C to

+70˚C

- Industrial (I):

-40˚C to

+85˚C

- Automotive (E):

-40˚C to +125˚C

PACKAGE TYPES

BLOCK DIAGRAM

A0

A1

A2

1

2

3

4

8

7

6

5

WP

SCL

SDA

A0

A1

A2

1

2

3

4

8

7

6

5

WP

SCL

SDA

DIP

8-lead

SOIC

14-lead

SOIC

SDA

NC

Vcc

WP

NC

SCL

NC

Vss

NC

A0

A1

NC

A2

NC

1

2

3

4

5

6

7

14

13

12

11

10

9

8

Vcc

Vss

SDA

SCL

Data

Buffer

(FIFO)

Data Reg.

R/W Amp

Memory

Array

A

d

d

r

e

s

s

P

o

i

n

t

e

r

A0 to

A7

Increment

A8

Slave Addr.

Control

Logic

A0 A1 A2 WP