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

Restoration of clipped speech signal, Restoration of clipped speech signal ...

Restoration of clipped speech signal using linear prediction

Cadmium telluride, what are the manufacturing processes used in cadmium tel...

what are the manufacturing processes used in cadmium telluride manufacture?

Propeller efficiency, PROPELLER EFFICIENCY: The propeller is 80 - 87% e...

PROPELLER EFFICIENCY: The propeller is 80 - 87% efficient up to approximately 400 mph.  Generally, beyond this performance will fall off, although new materials and improved bl

Industrial buildings inspections-fire protection engineering, Industrial Bu...

Industrial Buildings Inspections: Fire safety within industrial buildings falls largely within the scope of more general precautions and recommendations given in Chapter of NF

climb performance , Two types of climb will be considered. The first is th...

Two types of climb will be considered. The first is the so-called steady climb. This is a climb in which the all acceleration components (i.e. parallel and perpendicular to the fli

Thermodynamics, calculate the workdone by a system which contains 10kg of t...

calculate the workdone by a system which contains 10kg of this gas expanding from 1m^3 at temperature of 293k, use the values a=15.7*10Nm^4, b=1.07*10^-2m^3 , R=0.278KJ/Kg-k.

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

Monolithic ic, Monolithic IC: The monolithic IC is constructed in basic...

Monolithic IC: The monolithic IC is constructed in basically the same manner as a "Bipolar Transistor", although the overall process requires a few additional steps because of

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

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