It Consist of two types circuits namely combinational Circuits and Sequential Circuits

A combinational circuit is a digital logic circuit whose output depends on the combination of inputs at the moment, completely ignoring the past state of the inputs. Digital logic gates are the building blocks of combinational circuits.

we learned about combinational circuits and how they work. Combinational circuits have a range of outputs that depend only on the combinations of inputs that exist. Below is a block diagram of the synchronous logic circuit.

Introduction

A sequential circuit is a special type of circuit that has a sequence of inputs and outputs. The output of a sequential circuit depends on the combination of both current inputs and previous outputs. The previous output is treated as the current state. Therefore, sequential circuits include combinational circuits and their storage elements. Sequential circuits do not necessarily contain combinational circuits. Therefore, sequential circuits can only contain storage elements.