Question

给定逻辑函数Y的波形图如此图,试写出它的真值表和逻辑函数式.

Answer 1

A1 A2 A3 A4 Y

0 0 0 0 0

0 0 0 1 1

0 0 1 0 1

0 0 1 1 0

0 1 0 0 1

0 1 0 1 0

0 1 1 0 0

0 1 1 1 1

1 0 0 0 1

1 0 0 1 0

1 0 1 0 0

1 0 1 1 1

1 1 0 1 1

1 1 1 0 1

1 1 1 1 0

Y=A1’A2’A3’A4+ A1’A2’A3A4’+ A1’A2A3’A4’+ A1’A2A3A4+ A1A2’A3’A4’+

A1A2’A3A4+ A1A2A3’A4+ A1A2A3A4’