OTP EPROM, 4M, 5V, 40PDIP; Memory Type:OTP; Memory Size:4Mbit; Memory Configuration:256K x 16bit; Access Time:55ns; Supply Voltage Range:4.5V to 5.5V; Memory Case Style:DIP; No. of Pins:40; Operating Temperature Range:-40°C to +85°C; SVHC:No SVHC (18-Jun-2010)