FM25640

FM25640 64Kb FRAM Serial Memory Features 64K bit Ferroelectric Nonvolatile RAM Organized as 8,192 x 8 bits High Endurance 1 Trillion (1012) Read/Writes 10 Year Data Retention NoDelay™ Writes Advanced high-reliability ferroelectric process Very Fast Serial Peripheral Interface - SPI Up to 5 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 Industrial Temperature -40° C to +85° C 8-pin SOIC 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 10 years while eliminating the complexities, overhead, and system level reliability problems caused by EEPROM and other nonvolatile memories. Unlike serial EEPROMs, the FM25640 performs write operations at bus speed. No write delays are incurred. Data is written to the memory array mere hundreds of nanoseconds after it has been successfully transferred to the device. The next bus cycle may commence immediately. In addition, the product offers substantial write endurance compared with other nonvolatile memories. The FM25640 is capable of supporting up to 1012-read/write cycles -far more than most systems will require from ...