根据系统设计要求，综合计时电路分为计秒电路，计分电路，计时电路，计日电路，计月电路，计星期电路，计年电路，控制输入电路，进制转换电路，显示电路。-According to the system design, integrated circuit timing circuit is divided into the seconds, scoring circuit, timing circuit, namely, at the circuit, monthly circuit, total weeks of the circuit, namely, in the circuit, the control input circuit, binary conversion circuit, display circuit.