NV25640is 64 Kb Serial CMOS EEPROM Automotive grade device internallyorganized as 8Kx8 bits. It features a 32−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 NV25xxx device. The device features software and hardware write protection, including partial as well as full array protection. Byte Level On−Chip ECC (Error Correction Code) makes the device suitable for high reliability applications. The device offers an additional Identification Page which can be permanently write protected.

• Automotive Temperatures Grade0: -40°C to +150°C/VCC = 2.5V to 5.5V
• SOIC and TSSOP 8-Lead and Wettable Flank UDFN 8−pad Packages
• 20/ 10 MHz SPI Compatible
• SPI Modes (0,0) & (1,1)
• 32-byte Page Write Buffer
• Self-timed Write Cycle
• Hardware and Software Protection
• Block Write Protection
• - Protect ¼, ½ or Entire EEPROM Array
• Low Power CMOS Technology
• 100 Year Data Retention
• Additional Identification Page with Permanent Write Protection
• NV Prefix for Automotive and Other Applications Requiring Site andChange Control
• Program/Erase Cycles: 4,000,000 at 25°C;1,200,000 at +85°C;600,000 at +125°C;300,000 at +150°C;
• These Devices are Pb-Free, Halogen Free/BFR Free, and RoHS Compliant