文档介绍：课程设计报告
设计题目:数字电子时钟
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设计时间:2009年8月30日
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74LS160(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。
关键词:数字电子钟、555芯片、计数器、数码管
目录
摘要·········································································································1
第1章概述·························································································3
第2章课程设计任务及要求····························································4
设计任务···············································································4
设计要求···············································································4
第3章系统设计···&