24W08

ST24C08, ST25C08 ST24W08, ST25W08 8 Kbit Serial I2C Bus EEPROM with User-Defined Block Write Protection 1 MILLION ERASE/WRITE CYCLES with 40 YEARS DATA RETENTION SINGLE SUPPLY VOLTAGE: – 3V to 5.5V for ST24x08 versions – 2.5V to 5.5V for ST25x08 versions HARDWARE WRITE CONTROL VERSIONS: ST24W08 and ST25W08 PROGRAMMABLE WRITE PROTECTION TWO WIRE SERIAL INTERFACE, FULLY I2C BUS COMPATIBLE BYTE and MULTIBYTE WRITE (up to 8 BYTES) PAGE WRITE (up to 16 BYTES) BYTE, RANDOM and SEQUENTIAL READ MODES SELF TIMED PROGRAMMING CYCLE AUTOMATIC ADDRESS INCREMENTING ENHANCED ESD/LATCH UP PERFORMANCES 8 1 PSDIP8 (B) 0.25mm Frame 8 1 SO8 (M) 150mil Width Figure 1. Logic Diagram DESCRIPTION This specification covers a range of 8 Kbits I2C bus EEPROM products, the ST24/25C08 and the ST24/25W08. In the text, products are referred to as ST24/25x08, where "x" is: "C" for Standard version and "W" for Hardware Write Control version. Table 1. Signal Names PRE E SDA SCL MODE WC VCC VSS Write Protect Enable Chip Enable Input Serial Data Address Input/Output Serial Clock Multibyte/Page Write Mode (C version) Write Control (W version) Supply Voltage Ground VCC E PRE SCL MODE/WC* ST24x08 ST25x08 SDA VSS AI00860E Note: WC signal is only available for ST24/25W08 products. February 1999 1/16 ST24/25C08, ST24/25W08 Figure 2A. DIP Pin Connections Figure 2B. SO Pin Connections ST24x08 ST25x08 PRE 1 NC 2 8 VCC 7 MODE/WC E3 6 SCL VSS 4 5 SDA AI00861E PRE NC E VSS ST24x08 ST25x08 18 27...