Difference Between Flip-flop and Latch
The flip-flops and latch carry various differences, from basic principles to working and sensitivity. These differences help us choose a better memory device as per our requirements.
Difference Between Latch and Flip-flop
We have outlined the difference between flip-flop and latch in the table provided below:
|It uses an edge-triggered approach.||It is a level-triggered approach.|
|Flip-flops are classified as synchronous and asynchronous.||No such classification of Latch.|
|Flip-flops have a clock signal.||Does not have a clock signal.|
|Flip-flops are built up from a latch.||They are built up from gates.|
|The operating speed is slow.||The operating speed is high.|
|Flip-flops require power more than a latch.||Required less power.|
|It covers more area.||Less area required.|
What is Flip-flop?
Flip-flops are used to save memory. Flip-flops are also known as one-bit memory or bistable multivibrators. It stores one bit of memory/information. They are the building blocks. They are the basic digital memory circuit. The flip-flops use the edge-triggered approach. There are four types of flip-flops:
What is a Latch?
A latch is a memory device and is also used to save memory. A latch is used to immediately change the output based on the input applied in electronic devices. Only stores 1 or 0 at a time. There are two inputs in the latch, i.e., SET and RESET. Based on these inputs, two types of outputs are generated. Various types of Latch are:
- JK Latch
- T Latch
- SR Latch
- Gated D Latch
- Gated S-R Latch
- D latch
Latch vs Flip Flop: Conclusion
Let us derive a few conclusions after our discussion:
- Flip flops are the improved versions of latches. Flip-flops are preferred over latches because of various advantages, such as using a clock signal and an edge-triggered approach.
- Even though flip-flop covers more area, it is still preferred because it eases the design interpretation.
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