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by 张莲
产业与科技论坛, ISSN 1673-5641, 2014, Issue 1, pp. 60 - 61
计数器是数字系统的重要组成部分,不仅可用来计数、分频,还常用于测量脉冲频率和脉冲宽度(或周期),组成定时电路、数字钟和顺序脉冲发生器等。本文通过介绍用74LS90设计N进制计数器的方法和案例实践,得出此种方法的关键点和优越性。 
74LS90 | 任意进制N | 计数器
Journal Article
新疆职业教育研究, ISSN 1674-8689, 1996, Issue 1, pp. 43 - 48
Journal Article
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