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

Define the term technology, Question 1 Define the term technology. Write a...

Question 1 Define the term technology. Write a effective short note on evolution and growth of technology Question 2 Citing an example, state and explain the reasons that com

Aeronautical, apply equations to solve problems for specified aerodynamic a...

apply equations to solve problems for specified aerodynamic applications. Need some inputs regarding this.

Propeller control in aircraft engine, Propeller control : CONSTANT SPE...

Propeller control : CONSTANT SPEED UNIT: In the normal flight range, the main control of the propeller is exercised by the propeller control unit (PCU). MANUAL AND AU

Bjt, why we use h for bjt

why we use h for bjt

Case study, M/s XYZ Ltd manufactures a product “PLVS” at its plant at Meeru...

M/s XYZ Ltd manufactures a product “PLVS” at its plant at Meerut, the maximum capacity of which is 200 units per month. Details of raw materials which go into the making of 1 units

Switching, name the switching schemes used in a digital exchange. how call ...

name the switching schemes used in a digital exchange. how call processing takes place?

Water traetment, what are the different phosphates used in water treatment?...

what are the different phosphates used in water treatment?

Principle of means of escape - fire safety management, Principle of Means o...

Principle of Means of Escape: The means of escape with which a building is provided are simply the ways out of the building that can be safely used in the event of a fire.  It

Composite materials - notation of axes, Notation for Body Axes The stan...

Notation for Body Axes The standard notation for the body axis sytem for aircraft dynamics. This sectionexplains the significance of the term body axis and develops the non-lin

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