Atmel offers a diverse family of small sector Flash memory devices ranging in density from 256K to 4M bits. These devices read and program with a single voltage supply. The nominal supply voltage is 5V for the AT29CXXX, 3.3V for the “low voltage” AT29LVXXX, and 3V for the “Battery Voltage” AT29BVXXX Flash memory family. The entire Flash PEROM product line is designed to allow users to have one common programming algorithm for all three Flash voltage families. Therefore, upgrading from one density to another and from a higher voltage to a lower voltage device is simplified.