The FM24C64B-GTR is a 64-Kbit (8K × 8) serial ferroelectric RAM (F-RAM) with an I2C interface, delivering 100 trillion (1014) read/write cycles and 151-year data retention at 65°C. It operates from 4.5 V to 5.5 V over –40°C to +85°C, supports NoDelay™ writes at bus speed, and features low 100 μA active current at 100 kHz in an 8-pin SOIC package.