Which of the following statements is FALSE?
2017
Which of the following statements is FALSE?
- A.
Johnson counter is a synchronous counter.
- B.
Ripple counter is an asynchronous counter.
- C.
Asynchronous counters are slower than synchronous counters.
- D.
A counter may count up or count down, but cannot count both up and down.
Attempted by 96 students.
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Correct answer: D
The statement in Option D is FALSE. A single counter can be designed to count both up and down based on a control input status (e.g., an Up/Down control line mode switch). When Up/Down = 1, it counts upwards, and when it is 0, it counts downwards. Such circuits are widely used and known as bidirectional or Up/Down Counters.
Thus, the false statement option is D.