数字电子钟
[摘要]:随着现代电子技术的飞跃发展,各类智能化产品相应而出,为人类的生活带来了无比便利。其中数字电路是智能化产品的重要组成部分。数字电路具有电路简单、可靠性高、成本低等优点,本设计就以数字电路为核心设计电子钟。数字钟是一个将“ 时”,“分”,“秒”显示于人的视觉器官的计时装置。它的计时周期为24小时,显示满刻度为23时59分59秒,另外应有校时功能。电路系统由秒信号发生器、时、分、秒计数器,显示器,校时电路组成。
[关键词]:电子钟、计数、秒脉冲
Digital Clock
[Abstract]: With the rapid development of modern electronic technology, the corresponding out all kinds of intelligent products for human life has brought tremendous convenience. Digital circuit which is an important part of intelligent products. Digital circuit has a simple circuit, high reliability, low cost, the design of digital electronic circuit design as the coreclock. A digital clock is the "hour", "minute", "second" an in the human visual timing device. Its time period is 24 hours, the full scale of 23:59:59, while the other school should function. By the second signal generator circuit system, hours, minutes, seconds counter, display, timing circuit.
[Keywords]: Digital Clock;Counter;One second pulse
目录
1 前言............................................................. 1
........................................... 1
................................................... 1
2 设计内容与要求................................................... 2
3 电路工作原理及分析............................................... 3
................................... 3
............................................... 3
、分、秒计数器电路....................................... 4
................................................... 4 4 数字电路的设计................................................... 5
计数电路的设计............................................. 5
校时电路的设计............................................. 7
5主要芯片的技术参数............................................... 8
74LS90芯片................................................ 8
74LS290芯片............................................... 8
6 心得体会.........................................................10
参考文献.................................
电工电子技术课程设计-数字电子钟设计说明书 来自淘豆网m.daumloan.com转载请标明出处.