Sequential Circuit
In sequential circuits, the output not only depends on present input but also past signals.This is in contrast with Combinational Circuit.
Sequential circuits have ‘memory’ or storage elements that can store logic values. The content of the storage elements defines the state of the sequential circuit.
Note: Outputs are then a function of both the current circuit inputs and the system state (i.e., what happened in the circuit before... history is present!).Two Types of Sequential Circuits
Synchronous sequential circuits: circuit behaviour is determined from the knowledge of signal values at discrete instances in time. Uses a Clock
Asynchronous sequential circuits: circuit behaviour is determined by signals at any instant in time and the order in which input signals change. No Clock
How does memory work? How do we store bits? We use