In the 28-SOIC (0.295, 7.50mm Width) package, real time clocks is embedded as a dependency.Tube is the package format.In this electrical RTC, the supply voltage is 2.7V~3.6V.Clock/Calendar is the type of electrical real time clock that is being used.As you can see from the diagram, this electronic component is mounted in the way of Surface Mount.There should be -40°C~85°C operating temperature.When operating, electronic time clocks are possible to ensure that Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer are maintained.When a transmission line is terminated with 28 terminations, it means that the RTC module that terminates the line matches its characteristic impedance.It should be noted that this RTC real time clock is being supplied with 3V voltage at the moment.A total of 28 pins are equipped with the RTCs.The family in which RTCs belongs are M41ST.A voltage of 2.5V~3.6V is supplied to this electrical digital time clock.RTC times embed a memory of 128B for storing programs and data.Mounting type Surface Mount is chosen for the RTC module.In order for it to be powered, it requires a power supply of 3/3.3V.There are 28 pins on it.When an input signal is received, 1 timers are used to output a signal at a preset time.Frequency 32kHz is achievable.A digital time clock with 8 bits is designed for this application.