In the 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) package, real time clocks is embedded.Tape & Reel (TR) is the way time clock is packaged.1.8V~3.6V is the supply voltage of this electrical RTC.Clock/Calendar is the type of this electrical real time clock.There is an real time clock (RTC) mounted in the way of Surface Mount.-40°C~85°C should be the operating temperature.Operating with Alarm, Leap Year are possible.With 8 pins, it is equipped.The ISL12058 family contains RTCs .