Description
The FM25640 is a 64-kilobit nonvolatile memory employing an advanced ferroelectric process. A ferroelectric random access memory or FRAM is nonvolatile but operates in other respects as a RAM. It provides reliable data retention for years while eliminating the complexities, overhead, and system level reliability problems caused by EEPROM and other nonvolatile memories.

FEATUREs
64K bit Ferroelectric Nonvolatile RAM
• Organized as 8,192 x 8 bits
• High Endurance 1 Trillion (1012) Read/Writes
• NoDelay™ Writes
• Advanced high-reliability ferroelectric process

Very Fast Serial Peripheral Interface - SPI
• Up to 4 MHz maximum bus frequency
• Direct hardware replacement for EEPROM
• SPI Mode 0 & 3 (CPOL, CPHA=0,0 & 1,1)

Sophisticated Write Protection Scheme
• Hardware Protection
• Software Protection

Low Power Consumption
• 10 µA Standby Current

Industry Standard Configuration
• Automotive Temperature -40° C to +125° C
   o Qualified to AEC Q100 Specification
• “Green”/RoHS 8-pin SOIC