24C04 datasheet(1/16 Pages) STMICROELECTRONICS

Part #	24C04

Description	4 Kbit Serial I2C Bus EEPROM with User-Defined Block Write Protection

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ST24C04, ST25C04

ST24W04, ST25W04

4 Kbit Serial I

2C Bus EEPROM

with User-Defined Block Write Protection

February 1999

1/16

AI00851E

2

E1-E2

SDA

VCC

ST24x04

ST25x04

MODE/WC*

SCL

VSS

PRE

Figure 1. Logic Diagram

1 MILLION ERASE/WRITE CYCLES with

40 YEARS DATA RETENTION

SINGLE SUPPLY VOLTAGE:

– 3V to 5.5V for ST24x04 versions

– 2.5V to 5.5V for ST25x04 versions

HARDWARE WRITE CONTROL VERSIONS:

ST24W04 and ST25W04

PROGRAMMABLE WRITE PROTECTION

TWO WIRE SERIAL INTERFACE, FULLY I2C

BUS COMPATIBLE

BYTE and MULTIBYTE WRITE (up to 4

BYTES)

PAGE WRITE (up to 8 BYTES)

BYTE, RANDOM and SEQUENTIAL READ

MODES

SELF TIMED PROGRAMMING CYCLE

AUTOMATIC ADDRESS INCREMENTING

ENHANCED ESD/LATCH UP

PERFORMANCES

DESCRIPTION

This specification covers a range of 4 Kbits I2C bus

EEPROM products, the ST24/25C04 and the

ST24/25W04. In the text, products are referred to

as ST24/25x04, where "x" is: "C" for Standard

version and "W" for hardware Write Control ver-

sion.

PRE

Write Protect Enable

E1-E2

Chip Enable Inputs

SDA

Serial Data Address Input/Output

SCL

Serial Clock

MODE

Multibyte/Page Write Mode

(C version)

WC

Write Control (W version)

VCC

Supply Voltage

VSS

Ground

Table 1. Signal Names

8

1

SO8 (M)

150mil Width

8

1

PSDIP8 (B)

0.25mm Frame

Note: WC signal is only available for ST24/25W04 products.

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