The SST39LF800A-55-4C-B3KE is a 1 Megabit Flash memory integrated circuit device produced by Microchip. It features 4 Megabit of Flash memory, 4 Megabits of Flash Clock Oscillator with a clock speed of up to 55 MHz, and a Command Set which can be used to control the device. The device is available in a 44-pin plastic DIP package, and is powered by 3.3V or 5V power supplies. The device is optimized for flexibility, and offers reduced access times, burst and continuous read modes, program/erase suspend/resume, and partial array commands, making it ideal for designs requiring a high-density, high-performance Flash memory.