The CAT93C56/57 is a 2-kb CMOS Serial EEPROM device which is organized as either 128 registers of 16 bits (ORG pin at V
) 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.

• High speed operation: 2.0 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