Why Virtual Labs How it works

Flip-Flops & Counters

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Timing diagram

0 edges

Press Clock ▸ to start the trace

Flip-flop

The universal flip-flop. J=K=1 toggles — no forbidden state.

Flip-flop type

Inputs & clock

State

Q

0

Q̄

1

J	K	Q next
0	0	0
0	1	0
1	0	1
1	1	1