数字钟电路设计_multisim时钟脉冲_数字钟电路原理图

给出了一种数字钟电路设计的具体方法,采用石英晶体振荡器和分频器产生秒时钟信号,以动态扫描方式将计数结果进行译码,最终在共阴极LED数码管上显示时、分、秒时间.电路主要采用中规模CMOS集成电路纯硬件实现,覆盖内容广泛、涉及知识点较多、将其列入自主实验内容,对提高学生工程设计能力、综合运用各种知识分析问题、解决实际问题的能力等方面有显著效果.

The design method of a digital clock circuit is introduced. The quartz crystal oscillator and divider are used to generate a second clock signal,decode the counting results with dynamic scanning mode,and display the hour and minute and second on the common cathode LED digital tube in digital form. The circuit was realized with medium⁃scale pure hardware of CMOS integrated circuit. It overlays extensive contents and involves more knowledges. To enrol them in the independent experi⁃mental content can arouse the students learning enthusiasm,improve the students ability of engineering design,use various knowledge to yze problems,and it has remarkable result to solve the actual problem.

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