电子数字钟设计实际上是一个对标准频率（1Hz）进行计数的计数电路。振荡器产生的时钟信号经过分频器形成秒脉冲信号，秒脉冲信号输入计数器进行计数，并把累计结果以“时”、“分”、“秒”的数字显示出来。-Electronic digital clock is actually a standard frequency (1Hz) to count the counting circuit. Oscillator clock signal through the divider formed second pulse signal and second counter counts the input pulse signal, and the cumulative effect of " when" , " minute" , " second"　digital display.