The CY15B108QN-20BFXIT is an 8-Mbit EXCELON™ LP ferroelectric RAM (F-RAM) offering non-volatile memory with virtually unlimited endurance (10^15 read/write cycles) and 151-year data retention at 60°C. Operating from 1.8 V to 3.6 V, it supports SPI up to 20 MHz. Advanced write protection, unique device and serial IDs, and a 256-byte special sector enhance reliability.