This can be found in the package 8-SOIC (0.154, 3.90mm Width).The package is Tube.This electrical RTC receives its power from the 2V~5.5V supply voltage.There is a type of electrical real time clock Clock/Calendar associated with this real time clock.Here, Surface Mount represents how this part is mounted.Temperature should be set at -40°C~85°C.In order to ensure Alarm, Leap Year, Square Wave Output, Watchdog Timer when operating, a certain value has to be set.There is the possibility of terminating transmission lines with 28 terminations, which means that the equipment used to terminate the line will match its characteristic impedance.This RTC real time clock has a voltage of 5V.With 28 pins, it is equipped with the necessary functions.M41T81 are a family of objects that belongs to RTCs .There is a voltage of 2.5V~3.5V when powering this electrical digital time clock.It should be noted that the RTC times embed a memory of 20B which is usable for storing programs and data as well.Neither real time clocks' output frequency nor real time clocks' response frequency should exceed 0.032MHz.This RTC module is mounted using type Surface Mount.It operates from 2.5/5V power supplies.There are 8 pins, which are pronged contacts as part of a signal interface in a computer or other communications real time clock. There are 1 timers, which are control real time clocks that output a signal at a preset time after an input signal is received.