The CY15V108QN-20LPXCT is an 8-Mb EXCELON™ LP ferroelectric RAM (F-RAM) with a 1024K × 8 serial memory array, supporting virtually unlimited endurance (1015 cycles) and 151-year data retention. Operating from 1.71 V to 1.89 V, it uses an SPI interface up to 40 MHz in modes 0 and 3.