ST24/25C02, ST24C02R
ST24/25W02
SERIAL 2K (256 x 8) EEPROM
NOT FOR NEW DESIGN
November 1997 1/16
This is information on a product still in production but not r ecommended for new design
AI00788D
3
E0-E2 SDA
V
CC
ST24x02
ST25x02
ST24C02R
MODE/WC*
SCL
V
SS
Fig ure 1. L og ic Diag r am
1 MILLIO N ERA SE /WRI TE CY CLES with
40 YEARS DATA RETENTION
SI NGL E SUPPLY VOLTAGE:
– 3V to 5.5V for ST24x 02 versions
– 2.5V to 5.5V for ST25x02 vers ions
– 1.8V to 5.5V for ST24C02R vers ion only
HARDWARE WRITE CONTROL VERSIONS:
ST24W02 and ST25W02
TWO WIRE SERIAL INTERF ACE, FULL Y I
2
C
BUS COMPATI BLE
BYTE and MULTIBYTE WRITE (up to 4
BYTES)
PAGE WRITE (up to 8 BYTES)
BYT E, RAND OM and SEQUE NTIA L READ
MO DES
S ELF T IME D PRO G RA MMING CY CL E
AUT OMA T IC ADDRES S INCRE MENTING
ENHAN CED ESD/LATCH-UP
PE RFO RMANCES
ST24C/W02 are rep laced by the M24C02
ST25C/W02 are rep laced by the M24C02-W
ST24C02R is rep laced by the M24C02-R
D ES CRIPT ION
This specification covers a range of 2K bits I
2
C bus
EEPROM products, the ST24/25C02, the
ST24C02R and ST24/25W 02. In the text, products
are r eferred to as ST24/25x02, where "x" is: "C" for
Standard version and "W" for hardware Write Con-
trol vers ion.
E0-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)
V
CC
Supply Voltage
V
SS
Ground
Table 1. Signal Names
8
1
SO8 (M)
150mil Width
8
1
PSDIP8 (B)
0.25mm Frame
Note: W C signal is only available for ST24/25W02 products.
