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

Architectural graphics, How to draw schiography in a perspective view of an...

How to draw schiography in a perspective view of an object

How does or gate work, Expertsmind.com  brings you unique solution in Elec...

Expertsmind.com  brings you unique solution in Electrical Engineering   How does OR gate work? An 'OR' gate is like two or more switches positioned in parallel.

Engine lubrication systems - air craft engine , Engine lubrication systems ...

Engine lubrication systems There are basically two types of lubrication system at present in use in gas turbine engines:- a) Recirculatory. In this system, oil is distribut

Asteroid belt, Why is there an asteroid belt? - Rocky planetismals survive...

Why is there an asteroid belt? - Rocky planetismals survived in the asteroid belt between Mars and Jupiter because they did not grow together into a planet. - Jupiter’s gravity, t

Thermodynamics, What are the importance of engineering thermodynamics

What are the importance of engineering thermodynamics

Computational aerodynamics-guided reading, It is recommended that if possib...

It is recommended that if possible you should buy a copy of this book. It will prove useful for the new fourth year configurational aerodynamics module also. Blackwells bookshop ha

Home inventory system, Software House PLC (SHP) is a pan European software ...

Software House PLC (SHP) is a pan European software development group that operates in the UK and the European Union. The company develops and markets off the shelf & bespoke softw

7.3 satellite antenna, design a connectivity diagram for a 7.3 m satellite ...

design a connectivity diagram for a 7.3 m satellite antenna

Barometric lag, My question is that i am working in a petrochemical plant w...

My question is that i am working in a petrochemical plant where in final stage disc ring reactor the barometric lag is chocked completely the system is under vacuum if i introduce

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