十进制计数/脉冲分配器的扩展应用  

Patulous application of decimal counter/pulse assigner

作　　者：高建德 

机构地区：[1]任丘市职业技术教育中心

出　　处：《电子技术（上海）》2008年第8期7-8,共2页Electronic Technology

摘　　要：十进制计数/脉冲分配器除了进行十进制计数以外,还广泛地应用于各种控制电路中,例如霓虹灯控制以及一些设备的循环动作控制等。十进制计数/脉冲分配器的代表为集成电路CD4017。该IC具有Y0到Y9十个输出端,在组成控制电路时,有时候这十个输出端不够用,特别是在比较复杂的控制电路中,往往要求几十个输出端顺序输出才能满足控制要求。这就需要采用多片IC进行扩展连接,实现多路顺序循环输出功能。本文介绍了一个实用的四十路输出扩展电路,以供参考,根据这种思路,可以任意扩展到所需要的输出数。The decimal counter/pulse assigner has also been widely used in all types of control circuits besides decimal counting,such as neon light control and some devices circulated,etc.The integrated circuit,CD4017,is the leading role of the decimal counter/pulse assigners.CD4017 contains ten outputs from Y0 to Y9.Sometimes these outputs is not enough when it is used in control circuits,especially in the more complex control circuits,which usually wants tens of outputs to meet controlling.So it demands patulous connection of several IC in order to get the function of outputting in paths.My paper will introduce a practical patulous application which includes forty outputs.And according to this thought we can expand as many outputs as we want.

关 键 词：十进制计数/脉冲分配器 扩展 多路循环输出 

分 类 号：TN709[电子电信—电路与系统]