按照逻辑功能的不同特点，常把数字逻辑电路分为两大类：一类称为组合逻辑电路，一类称为时序逻辑电路。两类逻辑电路的功能描述方法、分析和设计方法不同。本文将对两类逻辑电路的分析与设计中的有关问题分类举例说明。一、组合逻辑电路设计组合逻辑电路的输出信号的稳态值仅 According to the different characteristics of logic functions, often digital logic circuits are divided into two categories: one is called combinational logic circuit, a class called sequential logic circuit. Two kinds of logic circuit function description method, analysis and design method is different. This article will classify the problems involved in the analysis and design of two types of logic circuits. First, the combinational logic circuit design combinational logic circuit output signal steady-state value only