在同步数字系统中,同步计数器是一种常用的电路,同步计数器可为二进制同步计数器和非二进制同步计数器。在许多场合下,并不一定要求采用二进制同步计数器,这时采用一些特殊的非二进制同步计数器,可以使电路的结构得到简化。本文介绍一种特殊的非二进制同步计数器一移位型同步计数器,它和二进制同步计数器相比,具有电路结构简单的优点,可供设计同步数字系统时采用。〈一〉移位型同步计数器是在串行输入的移位 In synchronous digital systems, the synchronous counter is a commonly used circuit, synchronous counter can be binary synchronous counter and non-binary synchronous counter. In many cases, it is not always required to use a binary synchronous counter. In this case, some special non-binary synchronous counter can be used to simplify the circuit structure. This article describes a special non-binary synchronous counter-shift synchronous counter, which compared with the binary synchronous counter, has the advantages of simple circuit structure, can be used for the design of synchronous digital system. The shift type synchronous counter is a shift in serial input