The CY15V104QN-50LPXI is a 4-Mb EXCELON™ LP ferroelectric RAM (F-RAM) with 512K × 8 organization, offering virtually unlimited endurance of 10^15 read/write cycles and 151-year data retention. Operating from 1.71 V to 1.89 V across –40°C to +85°C, it features a high-speed SPI interface up to 50 MHz, advanced write protection, and low-power operation. The device is ideal for mission-critical data logging and industrial control applications.