数字钟的设计与实现

Design and Realization of Digital Clock

本文充分利用电子技术知识,设计了一款简单实用的数字钟。详细介绍了电路的设计、仿真及实现的全过程,提出了二套可行的设计方案:方案1用晶体振荡器产生秒信号电路,译码驱动及显示单元电路采用HC390及CD4511;方案2采用555定时器构成秒信号产生电路,译码驱动及显示单元电路采用74LS160及CD4511。本文采用方案2进行电路的设计、仿真及实现。

The paper has fully used electronic technology knowledge to design a simple and practical digital clock. It in troduced the design, simulation and realization of the circuit, and proposed two sets of feasible design scheme. The first,the crystal oscillato was used to create a second signal, decoding drive circuit adopted HC390 and displaying unit adopted CD4511. The second,Used 555 timer to constitute a second signal generating circuit, the decoding and driver circuit used 74LS160 and displaying unit used CD4511.