目前,计数器尚无适应性很广的统一设计方法.本文介绍一种控制复位式计数器电路,经过长期应用,说明它具有设计简便、适应性强、工作可靠的特点,并能巧妙地构成特殊用途计数器.电路原理控制复位式计数器由控制复位电路和通常的二进制计数器两部分组成.控制复位电路如图1所示.这是由四个与非门A、B、C、D组成的不对称维持阻塞电 At present, there is no uniform counter design method widely used.This article introduces a control reset counter circuit, after long-term application, it has the characteristics of simple design, strong adaptability, reliable work, and can cleverly constitute a special purpose Counter circuit control reset counter by the control reset circuit and the usual binary counter of two parts control reset circuit shown in Figure 1. This is composed of four NAND gate A, B, C, D composed of asymmetric to maintain Blocking electricity