详细介绍组合逻辑电路的特点与组成

1.组合的特点

If a digital circuit, the circuit's output at any one time, just decided that the time of the input circuit, but has nothing to do with the circuit to its original state, then the sub-circuit is called the combinational logic circuits, referred to as combinational circuits. If the combinational logic circuit is only one output, called the single-output combinational logic circuit; if more than one output, called the multi-output combinational logic circuit

如果一个数字电路，电路的任一时刻的输出，刚刚决定，该输入电路的时间，但已无关的到其原始状态的电路，则子电路称为组合逻辑电路，称为作为组合逻辑电路。如果组合逻辑电路只有一个输出，称为单输出组合逻辑电路;如果超过一个输出，称为多输出组合逻辑电路

2.组合逻辑电路的组成

组合逻辑电路的组成方框图如图1所示。它有n个输入端，m个输出端，Xi为输入逻辑变量，Yi为输出逻辑变量。输出变量Y1，Y2，...，Ym是输入变量X1、X2，…，Xn的函数，即：

Y1=f1(X1,X2,…,Xn)
Y2=f2(X1,X2,…,Xn)
┇
Ym=fm(X1,X2,…,Xn)

组合逻辑电路图