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Digital ElectronicsFlip-Flops

Which flip-flop has no invalid input combination in its basic two-input operation and toggles when both inputs are HIGH?

  • ASR flip-flop
  • BJK flip-flop
  • CD flip-flop
  • DT flip-flop with two independent inputs
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Correct Answer: B. JK flip-flop
Explanation: The JK flip-flop removes the basic SR forbidden condition; with J=K=1 it toggles.
Reference: JK flip-flop operation
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