In the 20-TSSOP (0.173, 4.40mm Width) package, real time clocks is embedded.Tube is the way time clock is packaged.2V~5.5V 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, NVSRAM, Square Wave Output, Trickle-Charger are possible.In 20 terminations, a transmission line is terminated with an impedance-matched RTC module.5V voltage is present on this electronic component.With 20 pins, it is equipped.The DS1306 family contains RTCs .This electrical digital time clock has a supply voltage of 2V~5.5V.A memory of 96B can be used to store data and programs.There are 20 pins on it.The outputs are set to 3.