CAT25640

EEPROM Serial 64-Kb SPI CAT25640 Description The CAT25640 is a EEPROM Serial 64−Kb SPI 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. The HOLD input may be used to pause any serial communication with the CAT25640 device. The device features software and hardware write protection, including partial as well as full array protection. Features 20 MHz (5 V) SPI Compatible 1.8 V to 5.5 V 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 and Extended Temperature Range SOIC, TSSOP 8−lead and UDFN 8−pad Packages This Device is Pb−Free, Halogen Free/BFR Free, and RoHS Compliant VCC SI CS WP CAT25640 SO HOLD SCK VSS Figure 1. Functional Symbol DATA SHEET www.onsemi.com SOIC−8 V SUFFIX CASE 751BD UDFN−8 HU4 SUFFIX CASE 517AZ TSSOP−8 Y SUFFIX CASE 948AL PIN CONFIGURATION CS 1 SO WP VSS VCC HOLD SCK SI SOIC (V), TSSOP (Y), UDFN (HU4) Pin Name CS SO WP VSS SI SCK HOLD VCC PIN FUNCTION Function Chip Select Serial Data Output Write Protect Ground Serial Data Inp...