“Difference between Flip-flop And Latch” is one of the popular question from digital electronics and most of us don’t know the exact answer of this. As we are going to cover basic to advance concept for given topic, it will give you deep understanding of flip-flop and latch.
| FLIP-FLOP | LATCH |
|---|---|
| 1. Flip-flop checks the inputs but changes the output only at times defined by clock signal or any other control signal. | 1. Latches checks the input continuously and responds to changes in input immediately. |
| 2. Bistable device as it has two stable states i.e. 0 and 1. | 2. Also a Bistable device as it has two stable states i.e. 0 and 1. |
3. Flip-flops are edge triggered. |
3. Latches are level triggered.
 |
| 4. Gates like AND, OR, NOT, NAND, NOR are the building blocks of the flip-flops. They can be built from latches too. | 4. Latches are also made up from basic gates. |
| 5. Flip-flops form the building block of many sequential circuits like counters. | 5. Latches can also be used for designing sequential circuits but are not preferred generally. |
| 6. They can be classified as Synchronous and Asynchronous flip-flops. | 6. No such classification for Latches. |
| 7. Flip-flops always have a clock signal. | 7. Latches do not have any clock signal. |
| 8. Ex: D flip-flop, JK flip-flop. | 8. Ex: SR latch, D latch. |
9. Block Diagram:
 |
9. Block Diagram:
 |
10. Circuit Diagram:
 |
10. Circuit Diagram:
 |