AT29LV512 is a 3-volt-only in-system Flash programmable erasable read-only memory (PEROM) produced by Atmel. Its features are single supply voltage range 3V to 3.6V, 3-volt Only Read and Write Operation, Software Protected Programming, Low-power Dissipation - 15 mA Active Current - 50 µA CMOS Standby Current, Fast Read Access Time - 120 ns, Sector Program Operation - Single-cycle Reprogram (Erase and Program), 512 Sectors (128 Bytes / Sector), Internal Address and Data Latches for 128 Bytes, Fast Sector Program Cycle Time - 20 ms Max, Internal Program Control and Timer, DATA Polling for End of Program Detection, Typical Endurance > 10,000 Cycles, CMOS and TTL Compatible Inputs and Outputs, Green (Pb / Halide-free) Packaging Option.