The FM25V10-DG is a 1-Mbit (128K × 8) serial F-RAM memory with SPI interface, supporting 1014 read/write cycles and 151-year data retention at 65°C. Operating from 2.0 V to 3.6 V over –40°C to +85°C, it features 300 μA active current at 1 MHz, 5 μA sleep mode, and up to 40 MHz SPI speeds.