CAT25640

`􀂄 10 MHz SPI compatible
`􀂄 1.8V to 5.5V supply voltage range
`􀂄 SPI modes (0,0) & (1,1)
`􀂄 64-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

The CAT25640 is a 64-Kb Serial CMOS EEPROM device internally organized as 8Kx8 bits. This features a 64-byte page write buffer and supports the Serial Peripheral Interface (SPI) protocol. The device is enabled through a Chip Select (CS) input. In addition, the required bus signals are clock input (SCK), data input (SI) and data output (SO) lines. TheHOLD input may be used to pause any serial communication with the CAT25640 device. The device features softwarand hardware write protection, including partial as well as full array protection.