| 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 Alarm, Leap Year, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd I²C, 2-Wire Serial 1.6 V ~ 5.5 V 1.2 V ~ 1.5 V 0.5µA @ 2V ~ 5V -40°C ~ 85°C Surface Mount 8-SOIC (0.154, 3.90mm Width) 8-SO |