Build Sequential Circuit

Design a sequential logic circuit by identifying the required memory and state type, constructing a state diagram and transition table, deriving excitation equations for the chosen flip-flop type, implementing the circuit at the gate level using flip-flops and combinational logic, and verifying correctness through timing diagram analysis and state sequence simulation.

When to Use

• A circuit must remember past inputs or maintain internal state across clock cycles
• Designing counters (binary, BCD, ring, Johnson), shift registers, or sequence detectors
• Implementing a finite state machine (Mealy or Moore) from a state diagram or regular expression
• Adding clocked storage elements to a combinational datapath (registers, pipeline stages)
• Preparing stateful components for the simulate-cpu-architecture skill (register file, program counter, control FSM)

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