STMicroelectronics
IC EPROM CMOS 256KBIT 28DIP; Memory Size:256Kbit; EPROM Memory Configuration:32K x 8bit; No. of Pins:28Pins; Memory Case Style:DIP; Supply Voltage Min:4.5V; Supply Voltage Max:5V; Operating Temperature Min:0°C; Operating Temperature Max:70°C; Access Time:100ns; Packaging:Each; Product Range:-; MSL:-; SVHC:No SVHC (17-Dec-2015); Base Number:27; IC Generic Number:27C256; Logic Function Number:27C256; Memory Type:EPROM; Memory Voltage Vcc:5V; Operating Temperature Range:0°C to +70°C; Programming Voltage:12.75V; Supply Voltage Range:4.5V to 5V; Termination Type:Through Hole; Vcc Tolerance +:10%; Vcc Tolerance -:10%