数字电子课程设计数字电子时钟

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1、学号：09091310702011—2012学年第2学期数字电子课程设计报告题目：数字电子时钟专业：通信工程班级：09通信（2）班姓名：严凯指导教师：倪琳电气工程系2011年5月日二十四课程设计任务书学生班级：09通信2班学生姓名：严凯学号：0909131070设计名称：数字电子时钟起止日期：2011年5月30日至6月5日指导教师：倪琳设计要求：1．用555定时器设计一个秒钟脉冲发生器，输入1HZ的时钟；（对已有1kHz频率时钟脉冲进行分频）；2．能显示时、分、秒，24小时制；3.设计晶体震荡电路来输入时钟脉冲；4.

2、用同步十进制集成计数器74LS160设计一个分秒钟计数器,即六十进制计数器.；5.用同步十进制集成计数器74LS160设计一个24小时计数器,6.译码显示电路显示时间。二十四摘要数字电子钟是一种用数字显示秒﹑分﹑时的记时装置，与传统的机械钟相比，他具有走时准确﹑显示直观﹑无机械传动装置等优点，因而得到了广泛的应用：小到人们的日常生活中的电子手表，大到车站﹑码头﹑机场等公共场所的大型数显电子钟。本课程设计要用通过简单的逻辑芯片实现数字电子钟。要点在于用555芯片连接输出为一秒的多谐振荡器用于时钟的秒脉冲,用74LS16

3、0(10进制计数器)74LS00(与非门芯片)等连接成60和24进制的计数器,再通过七段数码管显示，构成了简单数字电子钟。二十四目录摘要···································································2第1章概述·······················································4第2章课程设计任务及要求····································52.1设计任务········

4、·········································52.2设计要求·················································5第3章系统设计··················································63.1方案论证···················································63.2系统设计······································

5、·············63.2.1结构框图及说明·································63.2.2系统原理图及工作原理··························73.3单元电路设计·············································83.3.1单元电路工作原理·······································83.3.2元件参数选择········································

6、·····11第4章软件仿真····················································154.1仿真电路图···················································154.2仿真过程·······················································164.3仿真结果·······················································16第5章安

7、装调试···················································185.1安装调试过程················································185.2故障分析·······················································20第6章结论·························································20第7章使用仪器设备清单·······

8、·····························22参考文献··························································22收获、体会和建议·············································23二十四第1章概述　　所谓电子技术,是指“含有电