ST24/25C02, ST24C02R
ST24/25W02
SERIAL 2K (256 x 8) EEPROM
NOT FOR NEW DESIGN
1 MILLION ERASE/WRITE CYCLES with
40 YEARS DATA RETENTION
SINGLE SUPPLY VOLTAGE:
– 3V to 5.5V for ST24x02 versions
– 2.5V to 5.5V for ST25x02 versions
– 1.8V to 5.5V for ST24C02R version only
HARDWARE WRITE CONTROL VERSIONS:
ST24W02 and ST25W02
TWO WIRE SERIAL INTERFACE, FULLY I
2
C
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
ST24C/W02 are replaced by the M24C02
ST25C/W02 are replaced by the M24C02-W
ST24C02R is replaced by the M24C02-R
DESCRIPTION
This specification covers a range of 2K bits I
2
C bus
EEPROM products, t he ST24/25C02, the
ST24C02R and ST24/25W02. In the text, products
are referred to as ST24/25x02, where "x" is: "C" for
Standard version and "W" for hardware Write Con-
trol version.
Table 1. Signal Names
E0-E2
SDA
SCL
MODE
WC
V
CC
V
SS
November 1997
This is information on a product still in production but not recommended for new design
8
1
PSDIP8 (B)
0.25mm Frame
8
1
SO8 (M)
150mil Width
Figure 1. Logic Diagram
VCC
3
E0-E2
SCL
MODE/WC*
ST24x02
ST25x02
ST24C02R
SDA
Chip Enable Inputs
Serial Data Address Input/Output
Serial Clock
Multibyte/Page Write Mode
(C version)
Write Control (W version)
Supply Voltage
Ground
Note:
WC signal is only available for ST24/25W02 products.
VSS
AI00788D
1/16
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