CAT25320

CAT25320 32-Kb SPI Serial CMOS EEPROM FEATURES „ 10 MHz SPI compatible „ 1.8V to 5.5V supply voltage range „ SPI modes (0,0) & (1,1) „ 32-byte page write buffer „ Self-timed write cycle „ Hardware and software protection „ Block write protection – Protect 1/4, 1/2 or entire EEPROM array „ Low power CMOS technology „ 1,000,000 program/erase cycles „ 100 year data retention „ Industrial temperature range „ RoHS-compliant 8 lead PDIP, SOIC, TSSOP and 8-pad TDFN packages www.DataSheet4U.com DESCRIPTION The CAT25320 is a 32-Kb Serial CMOS EEPROM device internally organized as 4096x8 bits. This features a 32-byte page write buffer and supports the Serial Peripheral Interface (SPI) protocol. The device ¯¯ ) input. In is enabled through a Chip Select (CS addition, the required bus signals are clock input (SCK), data input (SI) and data output (SO) lines. The ¯¯¯¯¯ input may be used to pause any serial HOLD communication with the CAT25320 device. The device features software and hardware write protec– tion, including partial as well as full array protection. PIN CONFIGURATION PDIP (L) SOIC (V) TSSOP (Y) TDFN (VP2) ¯¯ CS SO ¯¯¯ WP VSS 1 2 3 4 8 VCC ¯¯¯¯¯ 7 HOLD 6 SCK 5 SI FUNCTIONAL SYMBOL VCC SI CS WP HOLD SCK CAT25320 SO PIN FUNCTION Pin Name ¯¯ CS SO ¯¯¯ WP VSS SI SCK ¯¯¯¯¯ HOLD VCC Function Chip Select Serial Data Output Write Protect Ground Serial Data Input Serial Clock Hold Transmission Input Power Supply VSS For Ordering Information details, see page 15. © 2007 Catalys...