ST24C04, ST25C04 ST24W04, ST25W04 SERIAL 4K (512 x 8) EEPROM DATA BRIEFING 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 - 1.8V to 5.5V for ST24C04R version only 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 4K bits I2C bus EEPROM products, t he ST24/25C04, the ST24C04R 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 version. The ST24/25x04 are 4K bit electrically erasable programmable memories (EEPROM), organized as 2 blocks of 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 ST24C04R only. Both Plastic Dual-in-Line and Plastic Small Outline packages are available. 8 8 1 1 PSDIP8 (B) 0.25mm Frame SO8 (M) 150mil Width Logic Diagram VCC 2 E1-E2 PRE SCL SDA ST24x04 ST25x04 St24C04R MODE/WC* VSS AI00851D Note: WC signal is only available for ST24/25W04 products. B24C04/607 Complete data available on DATA-on-DISC CD-ROM or at www.st.com 1/2 ST24/25C04, ST24C04R, ST24/25W04 DIP Pin Connections Signal Names ST24x04 ST25x04 ST24C04R PRE E1 E2 VSS 1 2 3 4 8 7 6 5 VCC MODE/WC SCL SDA AI00852D 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 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. SO Pin Connections Example: ST24x04 ST25x04 ST24C04R PRE E1 E2 VSS 1 2 3 4 8 7 6 5 VCC MODE/WC SCL SDA ST24C04 Operating Voltage 24C04 3V to 5.5V 24W04 3V to 5.5V 25C04 2.5V to 5.5V 25W04 2.5V to 5.5V 24C04R 1.8V to 5.5V AI01107D B M 1 5 6 3 Package PSDIP8 0.25mm Frame SO8 150mil Width Temp. Range 0 to 70 C -20 to 85 C -40 to 85 C -40 to 125 C Option TR Tape & Reel Packing 2/2 Range Standard HW Write Control Standard HW Write Control Standard M 1 TR