CAT25C33

CAT25C33/65 32K/64K-Bit SPI Serial CMOS EEPROM FEATURES s 10 MHz SPI compatible s 1.8 to 6.0 volt operation s Hardware and software protection s Low power CMOS technology s SPI modes (0,0 &1,1) s Commercial, industrial, automotive and extended s 1,000,000 program/erase cycles s 100 year data tetention s Self-timed write cycle s 8-pin DIP/SOIC and 14-pin TSSOP s 64-byte page write buffer s Block write protection temperature ranges – Protect first page, last page, any 1/4 or lower 1/2 of EEPROM array DESCRIPTION The CAT25C33/65 is a 32K/64K-Bit SPI Serial CMOS EEPROM internally organized as 4Kx8/8Kx8 bits. Catalyst’s advanced CMOS Technology substantially reduces device power requirements. The CAT25C33/ 65 features a 64-byte page write buffer. The device operates via the SPI bus serial interface and is enabled though a Chip Select (CS). In addition to the Chip Select, the clock input (SCK), data in (SI) and data out (SO) are PIN CONFIGURATION SOIC Package (S, V, GV) CS SO WP VSS 1 2 3 4 8 7 6 5 VCC HOLD SCK SI DIP Package (P, L, GL) CS SO WP VSS 1 2 3 4 8 7 6 5 VCC HOLD SCK SI PIN FUNCTIONS Pin Name SO SCK WP i D VCC VSS CS SI HOLD NC c s Ground i t n o CS SO NC NC NC WP VSS www.DataSheet4U.com TSSOP Package (U14, Y14) 1 2 3 4 5 6 7 14 13 12 11 10 9 8 VCC HOLD NC NC NC SCK SI u n required to access the device. The HOLD pin may be used to suspend any serial communication without resetting the serial sequence. The CAT25C32/64 is designed with software and hardware wr...