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一、概述: 随着我国社会主义革命和建设的发展及实现四个现代化的要求,对电子器件进一步小型化的需求也日益迫切了。这次我们结合毕业实践与南京无线电研究所共同承担了“计数—寄存—译码（带消隐）MOS电路”〈简称三合一〉的设计和试制任务。 本电路主要是根据南京电讯器厂生产的频率计的要求进行设计的,该厂生产的频率计,原来用的是分立元件,体积庞大,现在正在试制用集成电路代替分立元件,已使体积大大缩小,我们的任务是将原来的计数、寄存、译码、三块电路合成一块,以求进一步缩小体积、降低功耗。 本电路在接上萤光数码管后,能直接将计数脉冲以十进制形式显示出来,并且具有无数量自动消隐的功能,除频率计外,在电子钟,电子仪表等方面都可应用,有一定的通用性。
I. Overview: With the development of the socialist revolution and construction in our country and the requirements of realizing the four modernizations, the demand for further miniaturization of electronic devices has become increasingly urgent. This time we combine the graduation practice with the Nanjing Institute of Radio to share the design of the “Count-Register-Decode (with Blanking) MOS circuit” (referred to as three in one) design and prototype tasks. This circuit is mainly designed according to the requirements of the frequency meter produced by Nanjing Telecom Factory. The frequency meter originally produced by the factory was originally a discrete component with a large size. Now it is trying to replace the discrete components with integrated circuits Narrow, our task is to the original count, storage, decoding, a synthesis of three circuits, in order to further reduce the size and reduce power consumption. The circuit connected to the fluorescent digital control, the count pulse can be displayed directly in decimal form, and has a number of automatic blanking function, in addition to the frequency meter, the electronic clock, electronic instruments can be applied, there are Certain versatility.