The FM25L04B-DGTR is a 4-Kbit (512 × 8) serial ferroelectric RAM (F-RAM) with up to 100 trillion (1014) read/write cycles and 151-year data retention at 65°C. It operates from 2.7 V to 3.6 V and –40°C to +85°C, consuming 200 μA active at 1 MHz and 3 μA standby. Featuring a fast SPI interface up to 20 MHz and hardware and software write protection, it is a direct replacement for serial flash and EEPROM. Ideal for frequent write applications in industrial systems.