The CAT93C46B is a 1-Kb Serial EEPROM memory device which is configured as either 64 registers of 16 bits (ORG pin at VCC) or 128 registers of 8 bits (ORG pin at GND). Each register can be written (or read) serially by using the DI (or DO) pin. The CAT93C46B features a self-timed internal write with auto-clear. On-chip Power-On Reset circuit protects the internal logic against powering up in the wrong state.

• High Speed Operation: 4 MHz (5 V), 2 MHz (1.8 V)
• 1.8 V (1.65 V for CAT93C46BxxxxL / T
• = -20°C to +85°C) to 5.5 V Supply Voltage Range
• Selectable x8 or x16 Memory Organization
• Self-Timed Write Cycle with Auto-Clear
• Sequential Read
• Software Write Protection
• 100 Year Data Retention
• Low Power CMOS Technology
• 1,000,000 Program/Erase Cycles
• Powerup Inadvertant Write Protection
• Industrial and Extended Temperature Ranges
• 8-pin PDIP, SOIC, TSSOP and 8-pad UDFN and TDFN Packages
• This Device is Pb-Free, Halogen Free/BFR Free and RoHS Compliant