The CY15V116QSN-108BKXQT is a 16 Mb EXCELON™ Ultra ferroelectric RAM (F-RAM) with Quad SPI interface, providing non-volatile, high-speed memory and virtually unlimited endurance of 100 trillion cycles. It operates from 1.71 V to 1.89 V, supports up to 108 MHz (SDR) and 46 MHz (DDR), and withstands –40°C to +105°C.