• 2022-06-18
    题图中的电路均为TTL门电路,试写出各电路输出Y1~Y8状态[img=2754x1057]18034dde4fbdef5.jpg[/img]
    A: Y1=0, Y2=0, Y3=Hi-Z, Y4=0, Y5=0, Y6=0, Y7=0, Y8=0
    B: Y1=0, Y2=0, Y3=0, Y4=0, Y5=0, Y6=0, Y7=0, Y8=0
    C: Y1=0, Y2=0, Y3=Hi-Z, Y4=1, Y5=0, Y6=0, Y7=0, Y8=0
    D: Y1=0, Y2=0, Y3=Hi-Z, Y4=0, Y5=1, Y6=0, Y7=0, Y8=0
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