摘要
数字钟是采用数字电路实现的计时装置,主要介绍了555定时器构成的多谐振荡电路作为时钟源的数字钟的基本组成和工作原理。电路元件大多为中小规模集成电路,是现下较为流行的数字钟的制作方案。
Digital clock is a digital circuit implementation of the timing device,the basic composition and working principle of 555 timer multivibrator circuit as the clock source for the digital clock are introduced in this paper.Now digital clock is produced with the circuit element of mostly small and medium scale integrated circuit.
出处
《信息技术》
2012年第10期159-162,共4页
Information Technology
关键词
数字钟
振荡分频电路
计数电路
digital clock
oscillation frequency division circuit
counting circuit
