Compare Combinational And Sequential Circuits. These circuits are capable of remembering data. Unlike combinational logic circuits whose output depends upon the signals being applied to the inputs at that time sequential logic circuits have some form of memory built in to them so that they are able to take into account their previous input state as well as those at present.
Combinational circuit is the type of circuit in which output is independent of time and only relies on the input present at that particular instant. These memory elements are flip flops. It is designed easy.
As soon as inputs are changed the information about the previous inputs is lost that is combinational logic circuits have no memory sequential logic circuits are those whose outputs are also dependent upon past inputs and hence outputs.
In sequential logic the current output of the system depends on the current input as well as the previous input. Data handling combinational circuits multiplexers demultiplexers priority encoders decoders. In combinational logic the current output depends on the current input. As soon as inputs are changed the information about the previous inputs is lost that is combinational logic circuits have no memory sequential logic circuits are those whose outputs are also dependent upon past inputs and hence outputs.
