The CY15V104QN-20BFXIT is a 4-Mb EXCELON™ LP ferroelectric RAM (F-RAM) organized as 512K × 8, supporting SPI interface up to 50 MHz for high-speed nonvolatile data storage. It delivers virtually unlimited endurance of 10^15 cycles and 151-year data retention at 60°C, with instant nonvolatile writes and low power operation.