Description
The CAT93C56/57 is a 2−kb CMOS Serial EEPROM device which is organized as either 128 registers of 16 bits (ORG pin at VCC) or 256 registers of 8 bits (ORG pin at GND). Each register can be written (or read) serially by using the DI (or DO) pin. The CAT93C56/57 features sequential read and self−timed internal write with auto−clear. On−chip Power−On Reset circuitry protects the internal logic against powering up in the wrong state.

Features
•High Speed Operation: 2 MHz
•1.8 V to 5.5 V Supply Voltage Range
•Selectable x8 or x16 Memory Organization
•Sequential Read
•Software Write Protection
•Power−up Inadvertant Write Protection
•Low Power CMOS Technology
•1,000,000 Program/Erase Cycles
•100 Year Data Retention
•Industrial and Extended Temperature Ranges
•8−pin PDIP, SOIC, TSSOP and 8−pad TDFN Packages
•These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant