The CY15V104QI-20LPXC is a 4-Mbit EXCELON™ LP ferroelectric RAM (F-RAM) with high-speed SPI interface up to 20 MHz. It delivers virtually unlimited endurance (10^15 read/write cycles) and 151-year data retention at 60°C. Operating from 1.71 V to 1.89 V, it features advanced write protection, unique device ID, and a dedicated 256-byte special sector. Low-power modes and inrush current control enable reliable performance in industrial and commercial applications.