CAT64LC40

CAT64LC10/20/40 1K/2K/4K-Bit SPI Serial EEPROM FEATURES s SPI bus compatible s Low power CMOS technology s 2.5V to 6.0V operation s Self-timed write cycle with auto-clear s Hardware reset pin s Hardware and software write protection H GEN FR ALO EE LE A D F R E ETM s Commercial, industrial and automotive temperature ranges s Power-up inadvertant write protection s RDY/BSY pin for end-of-write indication s 1,000,000 program/erase cycles s 100 year data retention DESCRIPTION The CAT64LC10/20/40 is a 1K/2K/4K-bit Serial EEPROM which is configured as 64/128/256 registers by 16 bits. Each register can be written (or read) serially by using the DI (or DO) pin. The CAT64LC10/20/40 is manufactured using Catalyst’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. PIN CONFIGURATION DIP Package (P, L) CS SK DI DO 1 2 3 4 8 7 6 5 VCC RDY/BUSY RESET GND SOIC Package (J, W) RDY/BUSY VCC CS SK 1 2 3 4 8 7 6 5 RESET GND DO DI TSSOP Package (U, Y) CS SK DI DO 1 2 3 4 8 7 6 5 VCC RDY/BUSY RESET GND SOIC Package (S, V) CS SK DI DO 1 2 3 4 8 7 6 5 VCC RDY/BUSY RESET GND TSSOP Package (UR, YR) RDY/BUSY VCC CS SK 1 2 3 4 8 7 6 5 RESET GND DO DI PIN FUNCTIONS Pin Name CS SK DI DO VCC GND RESET RDY/BUSY Function Chip Select Clock Input Serial Data Input Serial Data Output +2.5V to +6.0V Power Supply Ground Reset Ready/BUSY Status B...