24-SOIC (0.295, 7.50mm Width) contains real time clocks.A Tube package is used to package time clock.Its supply voltage is 2.7V~3.7V.It is a Clock/Calendar type electrical real time clock.A part of this electronic RTC module is mounted in the way of Surface Mount.Electronic time clocks are possible to guarantee Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output when operating.Transmission lines can be terminated with 24 terminations, which means that the RTC module that terminates the line matches its characteristic impedance.In this RTC real time clock, there is a voltage of 3V supplied to it.24 pins are present on it.2.5V~3.7V is the supply voltage of this electrical digital time clock.A memory of 2KB is embedded into the RTC times for storing programs and data.A frequency of 0.032MHz should not be exceeded by real time clocks' output.1 timers are in the real time clock that outputs a signal in response to an input signal.Temperatures should be kept below 70°C.