The CY15B256J-SXAT is a 256-Kbit (32K × 8) automotive serial F-RAM with I2C interface, delivering nonvolatile data storage with 100 trillion read/write cycles and 151-year retention at 65°C. It supports NoDelay™ writes at bus speed, operates from 2.0 V to 3.6 V over –40°C to +85°C, and achieves up to 3.4 MHz I2C.