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发布日期:2021年12月04日
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.NoLATCHFLIP-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.赵丽颖悼念去世粉丝 我记得你 愿一路走好赵丽颖粉丝微 ,刘嘉玲裸照案历时7载 东周刊 前总编入狱_影音娱乐_新浪网,文章出轨铁证 携姚笛庆生6日 缠绵拥抱姚笛文章祝寿_新 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.赵丽颖悼念去世粉丝 我记得你 愿一路走好赵丽颖粉丝微 ,刘嘉玲裸照案历时7载 东周刊 前总编入狱_影音娱乐_新浪网,文章出轨铁证 携姚笛庆生6日 缠绵拥抱姚笛文章祝寿_新 Latches are responsive towards faults on enable pin.Flip-Flops are protected toward fault.





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