| Type Features Memory Size Time Format Date Format Interface Voltage - Supply Voltage - Supply, Battery Current - Timekeeping (Max) Operating Temperature Mounting Type Package / Case Supplier Device Package | Clock/Calendar Leap Year, Square Wave Output, Trickle-Charger - HH:MM:SS (24 hr) YY-MM-DD-dd I²C, 2-Wire Serial 3 V ~ 3.6 V 1.4 V ~ 3.6 V 100µA @ 3.3V -40°C ~ 85°C Surface Mount 8-SOIC (0.154, 3.90mm Width) 8-SOIC |