Description
The CAT64LC40 is a 4 kb Serial EEPROM which is configured as 256 registers by 16 bits. Each register can be written (or read) serially by using the DI (or DO) pin. The CAT64LC40 is manufactured using ON Semiconductor’s advanced CMOS EEPROM floating gate technology. It is designed to endure 1,000,000 program/erase cycles and has a data retention of 100 years. The device is available in 8−pin DIP, SOIC and TSSOP packages.

Features
• SPI Bus Compatible
• Low Power CMOS Technology
• 2.5 V to 6.0 V Operation
• Self−Timed Write Cycle with Auto−Clear
• Hardware Reset Pin
• Hardware and Software Write Protection
• Commercial, Industrial and Automotive Temperature Ranges
• Power−up Inadvertent Write Protection
• RDY/BSYPin for End−of−Write Indication
• 1,000,000 Program/Erase Cycles
• 100 Year Data Retention
• This Device is Pb−Free, Halogen Free/BFR Free and RoHS Compliant*