MULTIKEY IBUTTON READ/WRITE, 1991; Supply Voltage Min:2.8V; Supply Voltage Max:6V; IC Package Type:F5; No. of Pins:-; Operating Temperature Min:-40°C; Operating Temperature Max:70°C; MSL:-; Base Number:1991; Brief Features:64-bit Password and ID Fields for each Memory Block; IC Temperature Range:Commercial; Logic Function Number:1991; Operating Temperature Range:-40°C to +70°C; Supply Voltage Range:2.8V to 6V; Termination Type:Surface Mount Device