64K NVSRAM, SMD, 12C68, SOIC28; Memory type:NVRAM; Memory size:64Kbit; Memory configuration:8K x 8bit; Time, access:45ns; Termination Type:SMD; Temp, op. max:70°C; Temp, op. min:0°C; Base number:12; Case style:SOIC; IC Generic number:12C68; Logic function number:12C68; Pins, No. of:28; Temperature range, IC:Commercial; Temperature, operating range:0°C to +70°C; Time, data retention:100Yr