CAT25C64

Advance Information CAT25C64/128 64K/128K-Bit SPI Serial CMOS E2PROM FEATURES s 5 MHz SPI Compatible s 1.8 to 6.0 Volt Operation s Hardware and Software Protection s Zero Standby Current s Low Power CMOS Technology s SPI Modes (0,0) s Commercial, Industrial and Automotive s 1,000,000 Program/Erase Cycles s 100 Year Data Retention s Self-Timed Write Cycle s 8-Pin DIP/SOIC, 16-Pin SOIC and 20-Pin TSSOP s 64-Byte Page Write Buffer s Block Write Protection – Protect 1/4, 1/2 or all of E2PROM Array Temperature Ranges DESCRIPTION The CAT25C64/128 is a 64K/128K-Bit SPI Serial CMOS E2PROM internally organized as 8Kx8/16Kx8 bits. Catalyst’s advanced CMOS Technology substantially reduces device power requirements. The CAT25C64/ 128 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 required to access the device. The HOLD pin may be used to suspend any serial communication without resetting the serial sequence. The CAT25C64/128 is designed with software and hardware write protection features including Block write protection. The device is available in 8-pin DIP, 8-pin SOIC, 16-pin SOIC and 20pin TSSOP packages. PIN CONFIGURATION SOIC Package (S) CS SO WP VSS 1 2 3 4 8 7 6 5 VCC HOLD SCK SI BLOCK DIAGRAM 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VCC HOLD NC NC NC NC SCK SI NC CS SO SO NC NC WP VSS NC NC SOIC Packag...