Excitation equations

System of state transition equations

Output system of equations

Composed of combinational circuits and memory circuits

The next state of the circuit is determined by the current input variables and status.

The output signal is determined by the input signal and the circuit state.

Asynchronous sequential circuit

Synchronous sequential circuit

Logic equations

state transition table

State transition diagram

Timing diagram

Clock signal equations

Excitation equations

System of state transition equations

Output system of equations

Sequential logic components that temporarily store secondary digital numbers

One type is a register composed of multi-bit D flip-flops in parallel. The data is stored when the effective edge of the clock arrives. The other type is composed of D latches. The data is stored at a certain agreed level of the clock. .

One-way shift register: serial in-serial/parallel out one-way shift register; serial/parallel in-serial out one-way shift register

Multifunctional bidirectional shift register

When running, the number of states experienced by a complete cycle starting from a certain state is called ---- the modulo M of the counter.

Asynchronous binary counter

Synchronous binary counter

Other modulus counters

ring counter

twisted ring counter