Synchronous Circuit. Synchronous circuits are used in counters shift registers memory units. In a synchronous sequential circuit all the state variables representing the internal state of the circuit change their state simulteneously with a given input clock signal to achieve the next state.
In a sequential digital logic circuit data is stored in memory devices called flip flops or latches. Synchronous sequential circuits use level inputs and clock signals as the circuit inputs having limitations on the circuit propagation time and pulse width to generate the output. In a synchronous sequential circuit all the state variables representing the internal state of the circuit change their state simulteneously with a given input clock signal to achieve the next state.
Synchronous sequential circuits use level inputs and clock signals as the circuit inputs having limitations on the circuit propagation time and pulse width to generate the output.
Also they don t use clock pulses. Also they don t use clock pulses. In a clocked sequential circuit which has flip flops or in some instances gated latches for its memory elements there is a synchronizing periodic clock connected to the clock inputs of all the memory elements of the circuit. Instead the circuit is driven by the pulses of the inputs which means the state of the circuit changes when the inputs change.
