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Home Electronics Sequential Logic Circuits Comments

  • Question
  • An asynchronous counter differs from a synchronous counter in the method of clocking.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • True 


  • Sequential Logic Circuits problems


    Search Results


    • 1. A ripple counter is an asynchronous counter.

    • Options
    • A. True
    • B. False
    • Discuss
    • 2. The modulus (mod) of a counter is the same as its maximum count (N).

    • Options
    • A. True
    • B. False
    • Discuss
    • 3. A parallel-in, serial-out shift register enters all data bits simultaneously and transfers them out one bit at a time.

    • Options
    • A. True
    • B. False
    • Discuss
    • 4. A serial-in, serial-out shift register transfers data from one line of a parallel bus to another line one bit at a time.

    • Options
    • A. True
    • B. False
    • Discuss
    • 5. Asynchronous inputs will cause the flip-flop to respond immediately with regard to the clock input.

    • Options
    • A. True
    • B. False
    • Discuss
    • 6. Asynchronous counters are often called ________ counters.

    • Options
    • A. toggle
    • B. ripple
    • C. binary
    • D. flip-flop
    • Discuss
    • 7. A _________ shift register can shift stored data either left or right.

    • Options
    • A. bidirectional
    • B. tri-state
    • C. universal
    • D. bidirectional universal
    • Discuss
    • 8. To operate correctly, starting a ring counter requires __________.

    • Options
    • A. clearing one flip-flop and presetting all the others
    • B. clearing all the flip-flops
    • C. presetting one flip-flop and clearing all the others
    • D. presetting all the flip-flops
    • Discuss
    • 9. In order to use a shift register as a counter, ________.

    • Options
    • A. the register's serial input is the counter input and the serial output is the counter output
    • B. the parallel inputs provide the input signal and the output signal is taken from the serial data output
    • C. a serial-in, serial-out register must be used
    • D. the serial output of the register is connected back to the serial input of the register
    • Discuss
    • 10. Synchronous construction reduces the delay time of a counter to the delay of __________.

    • Options
    • A. all flip-flops and gates
    • B. a single flip-flop and a gate
    • C. all flip-flops and gates after a 3 count
    • D. a single gate
    • Discuss


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