The CY15V104QN-20LPXIT is a 4-Mb EXCELON™ LP ferroelectric RAM (F-RAM) organized as 512K × 8, delivering 10^15 read/write cycles and 151-year data retention at 60°C. Operating from 1.71 V to 1.89 V over –40°C to +85°C, it supports a high-speed SPI interface up to 20 MHz. Instant nonvolatile writes, advanced write protection, and ultra-low power make it ideal for frequent data logging, industrial controls, and applications demanding high reliability and speed.