Digital electronics miscellaneous


Digital electronics miscellaneous

Digital Electronics

  1. In what type of shift register do we have access to only the leftmost and rightmost flip-flops—









  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: A

    NA


  1. Mark the false statement—









  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: C

    NA



  1. A decoding gate required to produce a LOW output when a MOD-64 counter is at the count of 27 is—









  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: B

    NA


  1. A MOD-32 binary synchronous counter would require—









  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: C

    NA



  1. A binary ripple counter is to be constructed using J-K flip-flops with each flip-flop having a propagation delay of 12 ns. The largest MOD counter that can be constructed using these flip-flops and still operate upto a clock frequency of 10 MHz is—









  1. View Hint View Answer Discuss in Forum

    Given, operating frequency = 10 MHz
    tpd = 12 ns of each flip-flop
    we know that

    or 10 × 106
    1
    n × 12 × 10-9

    or n ≤
    100
    12

    or n ≤ 8.33
    or n = 8
    Now, Modulus or MOD,
    N = 2n = 8 = 256
    Hence alternative (C) is the correct choice.

    Correct Option: C

    Given, operating frequency = 10 MHz
    tpd = 12 ns of each flip-flop
    we know that

    or 10 × 106
    1
    n × 12 × 10-9

    or n ≤
    100
    12

    or n ≤ 8.33
    or n = 8
    Now, Modulus or MOD,
    N = 2n = 8 = 256
    Hence alternative (C) is the correct choice.