analysis of clocked sequential circuits examples

The false outputs can be eliminated by allowing input to change only at the active transition of the clock (in our example HIGH-to-LOW). Pulse Driven which is a combination of the two that responds to triggering pulses. Clock Driven synchronous circuits that are synchronised to a specific clock signal. Due to this, if the input variations are not synchronized with the clock, the derived output will also not be synchronized with the clock and we get false output (as it is a synchronous sequential circuits). ANALYSIS OF CLOCKED SEQUENTIAL CIRCUITS lysis with T Flip-Flop A T analysis of a sequential circuit with T flops follows the same procedure ned for JK. Event Driven asynchronous circuits that change state immediately when enabled. However, they can affect the output of the circuit. 3.39, we can easily realize that, changes in the input within the clock pulses can not affect the state of the flip-flop.

3.39, the output of the circuit is derived from the combination of present state of flip-flops and input (s) of the circuit. When the output of the sequential circuit depends on both the present state of flip-flop(s) and on the input(s), the sequential circuit is referred to as Mealy Circuit. it varies in synchronism with the clock input. In the Moore Circuit, as output depends only on present state of flip-flops, it appears only after the clock pulse is applied, i.e.

Analysis of clocked sequential circuits examples