SRAM TIMEKEEPER 64K, 48T08, DIP28; Memory Size:64Kbit; NVRAM Memory Configuration:8K x 8bit; Supply Voltage Min:4.75V; Supply Voltage Max:5.5V; Memory Case Style:DIP; No. of Pins:28; IC Interface Type:Parallel; Access Time:150ns; Operating Temperature Min:0°C; Operating Temperature Max:70°C; Packaging:Each; Base Number:48; Data Retention Time:10Yr; IC Generic Number:48T08; IC Temperature Range:Commercial; Logic Function Number:48T08; MSL:-; Memory Type:NV RAM; Memory Voltage Vcc:5V; NVRAM Features:RTC, Internal Battery, XTAL; Operating Temperature Range:0°C to +70°C; SVHC:No SVHC (16-Dec-2013); Supply Voltage Range:4.75V to 5.5V