B24C04/607 1/2
Complete data available on
DATA-on-DISC CD-ROM
or at
www.st.com
ST24C04, ST25C04
ST24W04, ST25W04
SERIAL 4K (512 x 8) EEPROM
DATA BRIEFING
1 MILLIO N ERA SE /WRI TE CY CLES with
40 YEARS DAT A RETENTION
SI NGL E SUPPLY V OLTAGE:
– 3V to 5.5V for ST24x 04 versions
– 2.5V to 5.5V for ST25x04 vers ions
– 1.8V to 5.5V for ST24C04R vers ion only
HARDWARE WRITE CONTROL VERSIONS:
ST24W04 and ST 25W04
PROGRAMMABLE WRITE PROTECTION
TWO WIRE SERIAL INTERFACE, FULLY I2C
BUS COMPAT IBLE
BYTE and MULTIBYT E WRITE (up to 4
BYTES)
PAGE WRITE (up to 8 BYTES)
BYT E, RAND OM and SEQUE NTIA L READ
MODES
S ELF TI ME D PRO G RA MM ING C Y CLE
AUT OMA T IC ADDRES S INCRE MENTI NG
ENHAN CED E SD /LATCH UP
PERFORMANCES
DESCRIPTION
This specification covers a range of 4K bits I2C bus
EEPROM products, the ST24/25C04, the
ST24C04R and the ST24/25W04. In the text, prod-
ucts are referred to as ST24/25x04, where "x" is:
"C" for Standard version and "W" for hardware
Write Control version.
The ST24/25x04 are 4K bit electrically erasable
programmable memories (EEPROM), organized
as 2 blocks of 256 x 8 bits. They are manuf actured
in SGS-THOMSON’s Hi-Endurance Advanced
CMOS technology which guarantees an endur-
ance of one million erase/write cycles with a data
retention of 40 years. The memo ries operate with
a power supply value as low as 1.8V for the
ST 24C04R only.
Both P lastic Dual- in-Line and Plastic S mall Outline
packages are available.
AI00851D
2
E1-E2 SDA
VCC
ST24x04
ST25x04
St24C04R
MODE/WC*
SCL
VSS
PRE
Log ic Diag ra m
8
1
SO8 (M)
150mil Width
8
1
PSDIP8 (B)
0.25mm Frame
Note: WC signal is only available for ST24/25W04 products.
2/2
SDAVSS SCL
MODE/WCE1
PRE VCC
E2
AI00852D
ST24x04
ST25x04
ST24C04R
1
2
3
4
8
7
6
5
DIP Pin Connections
1
AI01107D
2
3
4
8
7
6
5SDAVSS SCL
MODE/WCE1
PRE VCC
E2
ST24x04
ST25x04
ST24C04R
SO Pin Connections
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
Signal Names
Exam ple: ST24C04 M 1 TR
Operating Voltage Range
24C04 3V to 5.5V Standard
24W04 3V to 5.5V HW Write Control
25C04 2.5V to 5.5V Standard
25W04 2.5V to 5.5V HW Write Control
24C04R 1.8V to 5.5V Standard
Package
B PSDIP8
0.25mm Frame
M SO8
150mil Width
Temp. Range
1 0 to 70 °C
5 –20 to 85 °C
6 –40 to 85 °C
3 –40 to 125 °C
Option
TR Tape & Reel
Packing
Orderi ng Informat ion Schem e
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.
ST24/25C04, ST24C04R, ST24/25W04
