SRAM TIMEKEEPER 256K, SMD, 48T35; Memory type:SRAM; Memory size:256Kbit; Memory configuration:32K x 8bit; Time, access:70ns; Termination Type:SMD; Temp, op. max:70°C; Temp, op. min:0°C; Base number:48; Case style:SOIC; IC Generic number:48T35; Logic function number:48T35; Pins, No. of:28; Temperature range, IC:Commercial; Temperature, operating range:0°C to +70°C; Time, data retention:10Yr