Date Format = YY-MM-DD / Time Format = HH:MM:SS (12/24 hr) / Interfaces = I²C / Interfaces = 2-Wire Serial / Battery Backup Switching Max. V = 5.5 / Battery Backup Switching Min. V = 1.3 / Supply Voltage Min. V = 1.8 / Supply Voltage Max. V = 5.5 / Operating Temperature Min. °C = -40 / Operating Temperature Max. °C = 85 / Package Type = SOIC / Pins = 8 / Mounting Type = SMD / Packaging = Tape & Reel / Length mm = 4.9 / Width mm = 3.9 / Height mm = 1.25 / Memory Size KB = 1