| 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, SRAM 2B HH:MM:SS (12/24 hr) YY-MM-DD-dd I²C, 2-Wire Serial 2.7 V ~ 5.5 V 1.8 V ~ 5.5 V 4µA ~ 6µA @ 3V ~ 5V -40°C ~ 85°C Surface Mount 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) 8-MSOP |