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使逻辑函数Y=AB=1时,AB取值为()。
A.11
B.10
C.00
D.01
E.11
F.01
A.11
B.10
C.00
D.01
E.11
F.01
下图由74LS00构成的实验连线图,实现的逻辑功能是
A、Y=AB
B、Y=A+B
C、Y=(AB)′
D、Y=(A+B)′
(1) Y1(A,B,C)=AB'+A'B+AB
(2) Y2(A,B,C)=AB'+B+(A+C')'
(3) Y3(A,B,C,D)=A+B'CD+A'BD
(4) Y4(M,N,P,Q)=MN'Q'+P'Q'+M'N'PQ'
(1) Y1(A,B,C)=AB'C'+A'C'+B'C
(2) Y2(A,B,C,D)=∑m(1,2,3,9,10,11,15)
(3) Y3(A,B,C,D)=A'B'C'+A'CD'+AB'C'+A'BC'D'+AB'CD'
(4) Y4(M,N,P,Q)=∑m(0,1,2,4,6,10,11,12,14,15)
(1) Y1(A,B,C,D)=(AB+C+D)(C'+D)(B'+C')
(2))Y2(A,B,C,D)=(AB'C+AB+(ABC)'+AC'+ABC')'
(3) Y3(A,B,C,D,E)=AC+B'C+BD'+CD'+(B+C')A+A'BE'+AB'DE
(4) Y4(A,B,C,D,E,F)=A'B'CE'+A'B'C'D'+B'D'E'F'+CDE'F'+CEF
(5) Y5(M,N,P,Q)=((MN')'P+P'Q)'(MP+NQ)
(6) Y6(P,Q,R,S)=(PQ+P'S'+QS'+P'Q+PRS'+P'S+RS+P'Q'S')'
(1) Y1(A,B,C)=∑m(0,1,2,6)
(2) Y2(A,B,C,D)=AB'+A'C+BC+C'D
(3) Y3(A,B,C,D)=∑m(1,2,6,7,9,13,14)
(4) Y4(P,Q,R,S)=P'Q'S+P'QRS+PQ'R'+PRS
(1)Y1=∑mi(i=0,1,6,8,12,15)
(2)Y2=∑mi(i=1,2,4,7)
(3)Y3=A+BC
(4)Y4=AB+AC+BC
逻辑函数式P(A,B,C)=m(3,5,6,7),化成最简与或式为 。
A、AB+BC+AC
B、AC+BC
C、AB+C
D、A+B
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