The preset and clear inputs to a J- K flip- flop are HIGH (1). Which of the following is TRUE?
A) The Q output is in an ambiguous state.
B) The Q output is immediately set to 1.
C) The flip- flop is free to respond to its J, K, and clock inputs.
D) The Q output is immediately cleared.

Question

Quizplus · Accepted Answer

When both preset and clear inputs to a J-K flip-flop are high, it means that the flip-flop is not being forced into a set or reset state. Therefore, it can respond to its J, K, and clock inputs as per the logic defined for its operation.

The Preset and Clear Inputs to a J- K Flip-