24c02.pdf

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SERIAL 2K (256 X 8) EEPROM - BRIEF DATA
ST24C02, ST25C02
ST24W02, ST25W02
SERIAL 2K (256 x 8) EEPROM
DATA BRIEFING
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
8
8
1
1
PSDIP8 (B)
0.25mm Frame
SO8 (M)
150mil Width
Logic Diagram
DESCRIPTION
This specification covers a range of 2K bits I 2 C bus
EEPROM products, the 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.
The ST24/25x02 are 2K bit electrically erasable
programmable memories (EEPROM), organized
as 256 x 8 bits. They are manufactured in SGS-
THOMSON’s Hi-Endurance Advanced CMOS
technology which guarantees an endurance of one
million erase/write cycles with a data retention of
40 years. The memories operate with a power
supply value as low as 1.8V for the ST24C02R only.
Both Plastic Dual-in-Line and Plastic Small Outline
packages are available.
V CC
3
E0-E2
SDA
SCL
ST24x02
ST25x02
ST24C02R
MODE/WC*
V SS
AI00788D
Note: WC signal is only available for ST24/25W02 products.
B24C02/607
1/2
Complete data available on DATA-on-DISC CD-ROM or at www.st.com
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ST24/25C02, ST24C02R, ST24/25W02
DIP Pin Connections
Signal Names
E0-E2
Chip Enable Inputs
SDA
Serial Data Address Input/Output
ST24x02
ST25x02
ST24C02R
SCL
Serial Clock
Multibyte/Page Write Mode
(C version)
MODE
E0
1
2
3
4
8
7
6
5
V CC
E1
MODE/WC
WC
Write Control (W version)
E2
SCL
V CC
Supply Voltage
V SS
SDA
V SS
Ground
AI00789D
SO Pin Connections
Ordering Information Scheme
For a list of available options refer to the current
Memory Shortform catalogue.
For further information on any aspect of this device,
please contact the SGS-THOMSON Sales Office
nearest to you.
Example: ST24C02 M 1 TR
ST24x02
ST25x02
ST24C02R
Operating Voltage Range
24C02 3V to 5.5V Standard
24W02 3V to 5.5V HW Write Control
25C02 2.5V to 5.5V Standard
25W02 2.5V to 5.5V HW Write Control
24C02R 1.8V to 5.5V Standard
E0
1
8
7
6
5
V CC
E1
2
3
4
MODE/WC
E2
SCL
V SS
SDA
AI00790E
Package
B PSDIP8
0.25mm Frame
M SO8
150mil Width
Temp. Range
1 0 to 70
°
°
C
6 –40 to 85
°
C
3 –40 to 125
°
C
Option
TR Tape & Reel
Packing
2/2
C
5 –20 to 85
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