Sequential Logic Circuits problems
- 1. 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
Correct Answer: True
- 2. The modulus (mod) of a counter is the same as its maximum count (N).
Options- A. True
- B. False Discuss
Correct Answer: True
- 3. A ripple counter is an asynchronous counter.
Options- A. True
- B. False Discuss
Correct Answer: True
- 4. An asynchronous counter differs from a synchronous counter in the method of clocking.
Options- A. True
- B. False Discuss
Correct Answer: True
- 5. Asynchronous counters are often called ________ counters.
Options- A. toggle
- B. ripple
- C. binary
- D. flip-flop Discuss
Correct Answer: ripple
- 6. A _________ shift register can shift stored data either left or right.
Options- A. bidirectional
- B. tri-state
- C. universal
- D. bidirectional universal Discuss
Correct Answer: bidirectional universal
- 7. 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
Correct Answer: presetting one flip-flop and clearing all the others
- 8. 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
Correct Answer: the serial output of the register is connected back to the serial input of the register
- 9. 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
Correct Answer: a single flip-flop and a gate
- 10. Ring and johnson counters are _______.
Options- A. asynchronous counters
- B. synchronous counters
- C. true binary counters
- D. asynchronous and true binary counters Discuss
Correct Answer: synchronous counters
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