FM 25040B-G – FRAM, 4 Kb (512 x 8), 4,5 … 5,5 V, SO-8

4-Kbit (512×8) Serial (SPI) F-RAM, 5V, 20MHz SO8The FM25040B is a 4-Kbit nonvolatile memory employing an advanced ferroelectric process. A ferroelectric random access memory or F-RAM is nonvolatile and performs reads and writes similar to a RAM. It provides reliable data retention for 151 years while eliminating the complexities, overhead, and system level reliability problems caused by serial flash, EEPROM, and other nonvolatile memories.