例2.用八选一数据选择器实现 L(A,B,C,D)=∑(0,2,7:.13) N: L=A(BCD)+A(BCD)+A(BCD)+A(BCD)+A(BCD) (A+ A(BCD)+A(BCD)+A(BCD)+A(BCD) Y=mo Do +m, D,+2D2+m, D3+m4D4 +ms D5+m6 D6+m,Dy 比较两式得:D0=1 D2=D7=A D5=A Dl=D3=D4=D6=0例2. 用八选一数据选择器实现 L(A,B,C,D) =(0,2,7,8,13) 解: ( )( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ A A BC D A BC D A BC D A BC D L A BC D A BC D A BC D A BC D A BC D = + + + + = + + + + Y = m0 D0 + m1 D1 + m2 D2 + m3 D3 + m4 D4 + m5 D5 + m6 D6 + m7 D7 比较两式得:D0=1 D2=D7=A D5=A D1=D3=D4=D6=0