The FM24W256-GTR is a 256-Kbit (32K × 8) serial ferroelectric RAM (F-RAM) featuring an industry-standard I2C interface, NoDelay™ writes, and endurance of 100 trillion read/write cycles. It operates from 2.7 V to 5.5 V across –40°C to +85°C, with typical standby current of 15 μA and active current up to 100 μA at 100 kHz.