Latches and flip-flop circuits, Other Engineering

Assignment Help:

Latches and flip-flop circuits:

Latches and Flip-flop circuits are a combination of logic gates that perform basic memory functions for computers and peripherals. Both these circuits retain their output signal even when the input signal has been removed; therefore, these circuits "remember" the input data. Figure shows a RS Latch circuit.


RS Latch

The two inputs to the latch are "SET" (S) and "RESET" (R), with two output signals Q and Q (not Q). A logic 1 at the S input will set the latch memory and Q equals 1, while Q will be 0. Logic 1 at the R input will reset the latch and Q will equal 0 and Q will equals 1.

585_latch.png 
Flip-flop circuits are similar to latch circuits; however, flip-flops change their output when a trigger pulse is applied. A flip-flop circuit contains three inputs, the S and R signals are identical with the latch circuit, the "Clock Pulse (CP) is an input that controls the circuit switch time. Its output will only change state at given time intervals controlled by the clock pulse.

The advantage of using a clock input for a memory circuit is that all flip-flop output signals change at the same time. This becomes very important when several memory circuits are used simultaneously.

Figure shows a Flip-flop circuit.

607_latch1.png

 


Related Discussions:- Latches and flip-flop circuits

Themodynamic, 1 kg of air is allowed to expand reversibly in a cylinder beh...

1 kg of air is allowed to expand reversibly in a cylinder behind a piston in such a way that the temperature remains constant at 260 degree while the volume is doubled.The piston i

ASSAYMENT, Ask que Discover ambiguities or omissions in the following state...

Ask que Discover ambiguities or omissions in the following statement of requirements for part of a ticket-issuing system: An automated ticket-issuing system sells rail tickets. Use

Explain critical path method and idea, Problem 1 Case Study - Developme...

Problem 1 Case Study - Development of a new sewage secondary treatment plant Context and location: Consideration is being given to the development of a new major sewage seco

Electronic project help, i have a project to do a remote control car by wir...

i have a project to do a remote control car by wired and the car should go foreword and backward by increasing the speed from the joystick(1) and the sound joystick control the dir

Harriman, HARRIMAN MANUFACTURING COMPANY Harriman Manufacturing Company i...

HARRIMAN MANUFACTURING COMPANY Harriman Manufacturing Company is evaluating the purchase of a new piece of equipment. The quoted price is $50,000, and it would cost Harriman anot

Procedure of producing self lubricated bearings, The self lubricating beari...

The self lubricating bearing is a typical application of metal powder parts or powder metallurgy process. The self lubricating bearings made from brass, iron, aluminium bronze etc,

Fresnel''s and fraunhofer''s classes of diffraction, Q. Distinguish between...

Q. Distinguish between Fresnel's and Fraunhofer's classes of diffraction. Show that the relative intensities of successive maxima of Fraunhofer diffraction at single slit are

Ans, How would you judge the potential profit ofBajaj Electronics on the fi...

How would you judge the potential profit ofBajaj Electronics on the first year of sales to Booth Plastics and give your views to increase the profit?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd