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

Dsp, need a topic for small project using dsp

need a topic for small project using dsp

Blending of metal powder, Q.5 Explain briefly the Blending of metal powders...

Q.5 Explain briefly the Blending of metal powders. Ans. Blending of Metal Powder:              The procedure of blending (mixing) powders is taken out for the followi

Casting alloys, Casting Alloys are -             (i) Permanent moulds...

Casting Alloys are -             (i) Permanent moulds are commonly used for the casting of grey iron, aluminum alloys and magnesium alloys.             (ii) Slush Casting

Aeroengine - velocity trinagle, If radial velocity is neglected, for a stat...

If radial velocity is neglected, for a stat or there is no change from the cascade analysis. For a rotor this vectorial For a rotor this vectorial addition gives rise to graphical

Engine speed indicators, Engine speed indicators: All engines have thei...

Engine speed indicators: All engines have their rotational speed (R.P.M.) indicated. On a twin or triple-spool engine, the high pressure assembly speed is always indicated; in

Payback period method, Non-discounted cash flow method, Payback period met...

Non-discounted cash flow method, Payback period method In this method, time value of money is not considered. It takes into account the number of years required to recover the in

Oil pressure warning light in aircraft, Oil pressure warning light: Oil...

Oil pressure warning light: Oil pressure is also monitored by an oil pressure switch that puts a light on when the oil pressure reaches a low level. The light is usually red an

High level design for an SME network, my course is master in telecommunicat...

my course is master in telecommunication and i need it today is it possible?

Sonic airflow - aircraft maintenance, Sonic airflow though divergent and co...

Sonic airflow though divergent and convergent ducts When a flow of fluid (i.e. gas) flows at sonic speed through a convergent duct a shock wave forms at the exit area of the du

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