There is a package called 8-SOIC (0.154, 3.90mm Width) which contains real time clocks, and you can find real time clocks there.There is a packaging method that is similar to Tape & Reel (TR).To supply this electrical RTC, a voltage of 2V~5.5V is required.The electrical real time clock belongs to the type Clock/Calendar.In this case, Surface Mount is the way this part is mounted on the systemboard.The temperature should always be kept at -40°C~85°C to ensure safe operation.When transmission lines are terminated with a zero, their characteristic impedance is that of the terminating RTC module.3V is the supply voltage of this RTC real time clock.Due to its 8 pins, it has the necessary features.The family to which RTCs belongs are M41T0.It is possible to store data and programs on the real time analog clocks with a memory size of 8B.RTC module mounting type Surface Mount is specified.In order for it to be powered, it requires a power supply of 2.5/5V.There are 8 pins on it.Frequency 32.768kHz is achievable.The outputs are configured to be 1.