IC, NVRAM MODULE 256K, 3281, DIP28; Memory Size:256Kbit; Memory Configuration:32K x 8bit; NVRAM Features:Internal Battery; Supply Voltage Range:4.75V to 5.5V; Memory Case Style:DIP; No. of Pins:28; Interface Type:Parallel; Access Time:100ns; Operating Temperature Range:-20°C to +70°C; Base Number:3281; Data Retention Time:10Yr; IC Generic Number:3281; Interface:Parallel; Logic Function Number:3281; Memory Type:NVRAM; Memory Voltage Vcc:5V; Operating Temperature Max:70°C; Operating Temperature Min:-20°C; Package / Case:DIP; Supply Voltage Max:5.5V; Supply Voltage Min:4.75V; Termination Type:Through Hole