Difference between Latches and Flip- Flops

Latch

A Latch is an electronic device that instantly changes its output based on the applied input. We use latch to store either 0 or 1 at any specified time. The "SET" and "RESET" are two inputs in a latch, and there are two outputs that are complement to each other. We use latch to store one bit of data and it is a memory device. A latch is just like a flip-flop, but latch is not a synchronous device. The Latch does not work on the clock edges like the flipflop.

Flip-Flop

Flip-flop is a digital memory circuit, and with the help of the flip-flop we can store one bit of information. The fundamental blocks of various sequential circuits are flip-flops. Flip-flop is also called a bistable multivibrator or one-bit or binary. In a sequential circuit, we use flip-flops as a memory element.

In a sequential circuit, the output is obtained from the combinational circuit or flip-flop or both. When the clock pulse is active, then the state of the flip-flop is active, and when the clock pulse is not active, then the state of the clock pulse remains unaffected. Mainly, in the synchronous sequential circuit, flip flops function as a memory element, and in asynchronous sequential circuit, the unclocked flip flops or latches function as a memory element.

Mostly, there are four types of Flip-Flops:

Set-Reset (SR) Flip-Flop
JK Flip-Flop
D (Data or Delay) Flip-Flop
T (Toggle) Flip-Flop

Difference Between Latch and Flip-Flop

S.No	LATCH	FLIP-FLOP
1.	A Latch is a bistable device, and the state of the latch is represented as 0 and 1.	Flip-Flop is also a bistable device and there are two stable states of Flip-Flop, which are represented as 0 and 1.
2.	A Latch is a level triggered device.	Flip-flop is an edge triggered device.
3.	We cannot classify the Latch.	We can classify the flip-flop as synchronous or asynchronous flipflops.
4.	To form sequential circuits, latches are constructed from logic gates.	To form sequential circuits, Flip-Flop is constructed from latches along with an additional clock signal.
5.	Latches are fast as compared to the Flip-Flop.	Flip-Flops are slow as compared to the latches.
6.	Less power is consumed by the Latches.	More power is consumed by the Flip-Flop.
7.	The latches can be clocked or clockless.	For all the time, Flip-Flops are clocked.
8.	Only binary inputs can be used to operate the latches.	By the clock signal and binary input, the Flip-Flop works.
9.	The latch is sensitive to the input and as long as it is 'On', we can transmit the data.	Flip-Flop is sensitive to the clock signals and until there is a change in the input clock signal, it never changes the output.
10.	The latch cannot be used as a register because the register requires more advanced electronic circuits where time plays an essential role.	Flip-Flop can work as a register because it contains clock signals in its input.
11.	The latch is asynchronous because latch does not work on the basis of the time signal.	Flip-Flop is synchronous because flip-flop work on the basis of the clock signal.
12.	The latch cannot be built from the gates.	Flip-Flop cannot be built from the latches.
13.	Latches are responsive towards faults on enable pin.	Flip-Flops are protected toward fault.