1、 本科生毕业论文设计 题目数字时钟的设计与仿真 摘 要 - - I 摘 要 数字时钟是一种用数字电路技术实现时、分、秒计时的装置，与机械式时钟相 比具有更高的准确性和直观性，且无机械装置，具有更长的使用寿命。数字钟以其 小巧，价格低廉，走时精度高，使用方便，功能多，便于集成化而受广大消费的喜 爱。 数字时钟的设计方法有许多种,例如,可用中小规模集成电路组成电子钟；也可 以利用专用的电子钟芯片配以显示电路及其所需要的外围电路组成电子钟； 还可以 利用单片机来实现电子钟等等。在这次设计中，我们采用中小规模集成电路，用 32768HZ 的晶振产生振荡脉冲，经分频后供计数器计数，并用 LED 数码管显
2、示时、 分、秒，以 24 小时计时方式。在此次设计中，电路具有显示时间的其本功能，还 可以实现对时和分的调整， 在设计过程中还使用了 EWB、PROTEUS 等仿真软件对 电路进行仿真。 关键词关键词：数字时钟，中小规模集成电路，数字电路,EWB,PROTEUS 河北师范大学职业技术学院学士论文 - II - Abstract Digital Clock is a digital circuit technology with the hours, minutes, seconds. Digital Clock clock is higher accuracy and intuitive th
3、an the machine clock, and has a longer service life. Digital clock with its compact, low cost, high precision, easy to use, features and more easy integration .And digital clock is loved by the general consumer. There are many ways to design of digital clock .For example, composed of small and mediu
4、m-scale integrated circuit electronic clock, can use a dedicated clock chip, accompanied by the required display circuit and external circuit electronic clock; can be used to achieve the e-SCM clock, etc In this design, we use small and medium-scale integrated circuits, with 32768HZ crystal oscillation which is pulses by frequency for the counter after the count, with LED digital display by 24-hour time mode. In this design, the circuit has the function of display time , we can realize the hou
