The CY15B104QI-20LPXI is a 4-Mbit EXCELON™ LP F-RAM with a high-speed SPI interface up to 20 MHz, industrial temperature range from –40°C to +85°C, and supply voltage of 1.8 V to 3.6 V. It delivers virtually unlimited endurance of 10^15 read/write cycles and 151-year data retention at 60°C. Advanced write protection, unique device ID, and low-power modes enhance reliability for mission-critical data logging and industrial control applications.