4-Bit Johnson Counter: Full Sequence Trace
A 4-bit positive-edge-triggered Johnson counter shifts its state rightward while feeding the inverted output of its final stage back to the input of its first stage.
Five signals are shown: CLK (clock, period 2), and the sequential stage outputs Q0, Q1, Q2, and Q3 (all initially 0).
Trace Q0, Q1, Q2, and Q3 across all 16 time steps to reveal the complete 8-state sequence.
Constraints
- Output changes only occur on the LOW-to-HIGH transition of
CLK. - The next state of
Q0is the inverse of the current state ofQ3. - The next state of
Q[N]is the current state ofQ[N-1].
Topics
Solve this problem
Place the gates, wire them up and watch the signals settle. Every submission runs on the same simulation engine that grades it.
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