Sequential Circuit Analysis

Sequential Circuit Analysis Visually

Interactive sequential circuit analysis tool with real-time simulations. Learn flip-flops, counters, and state machines with dynamic visualizations and timing diagrams.

Flip-Flops Counters State Machines Timing Analysis Memory Elements Clock Domains

Circuit Simulator

Current State: Q = 0, Q' = 1
State: RESET
Next: RESET
Clock: ↑

Timing Diagram

Characteristic Table

SR Flip-Flop

The SR flip-flop is a basic sequential logic circuit that can store one bit of information. It has Set and Reset inputs that control the output state.

Q(t+1) = S + R'Q(t)
Q'(t+1) = R + S'Q'(t)
Invalid state: S = R = 1

Interactive Controls

Slow Fast

Operation Statistics

0
Clock Cycles
0
State Changes
0
Set Operations
0
Reset Operations

Analysis Steps

1

Circuit Initialization

The sequential circuit is initialized with all flip-flops in a known state (typically reset state). Input signals are set to initial values.

2

Input Evaluation

All input signals are evaluated and propagated to the combinational logic sections of the circuit. This includes data inputs and clock signals.

3

State Transition

Based on the current state and input values, the next state of each flip-flop is determined using the characteristic equations.

4

Clock Edge Detection

The circuit waits for the active clock edge (rising or falling) to trigger the state transition in all clocked elements.

5

State Update

On the active clock edge, all flip-flops update their outputs to the calculated next state values. The circuit enters its new stable state.

6

Output Propagation

The new state values are propagated through the combinational logic to generate the circuit outputs and feedback to inputs.