Sr flip-flop, Electrical Engineering

Assignment Help:

SR FLIP-FLOP (SRFF)

The symbol for the SRFF is shown in Figure (a), in which S stands for "set," R stands for "reset" on the input side, and there are two outputs, the normal output Q and the complementary output ¯Q. The operation of the SRFF can be understood by the following four basic rules.

1. If S = 1 and R = 0, then Q = 1 regardless of past history. This is known as the set condition.

2. If S = 0 and R = 1, then Q = 0 regardless of past history. This is known as the reset condition.

3. If S = 0 and R = 0, then Q does not change and stays at its previous value. This is a highly stable input condition.

4. The inputs S = 1 and R = 1 are not allowed (i.e., forbidden) because Q¯Q = 11; ¯Q is no longer complementary to Q. This is an unacceptable output state. Such a meaningless instruction should not be used. Figure (b) summarizes the specification for an SRFF in terms of a truth table, in which Qn is the state of the circuit before a clock pulse and Qn+1 is the state of the circuit following a clock pulse.

665_SR flip-flop.png


Related Discussions:- Sr flip-flop

Find the source voltage, Q. A semiconductor diode with IS = 10µA and a 1-k...

Q. A semiconductor diode with IS = 10µA and a 1-k resistor in series is forward-biased with a voltage source to yield a current of 30mA. Find the source voltage if the diode I-V e

Draw the energy diagram of a pn junction, Question: a). Draw the energy...

Question: a). Draw the energy diagram of a pn junction: (i) at thermal equilibrium, (ii) when a forward bias with magnitude half the built in potential (V = φk/2) is applie

THE THEORY, I WANT TO KNOW WHAT IS THE THORY OF PLOTTING V-I CHARACTERISTIC...

I WANT TO KNOW WHAT IS THE THORY OF PLOTTING V-I CHARACTERISTIC CURVE OF SILICON DIODE ???

Use kcl and kvl to determine current, For the circuit shown in Figure, use ...

For the circuit shown in Figure, use KCL and KVL to determine i 1 , i 2 , v bd and v x . Also, find v eb .

Define gain and phase responses, Define Gain and Phase Responses? Expre...

Define Gain and Phase Responses? Expressing H(e j? ) in polar form as:   H (e j? ) = G (?) e jφ(?) G(?) is the "gain" of the discrete-time system and  φ(?) is the "phas

Induced voltage and inductance, Experiments conducted by Faraday and others...

Experiments conducted by Faraday and others using current carrying coils resulted in 'The Laws of Electromagnetic Induction' which state: 1)  'If the magnetic flux threading throu

Binary division , Binary  Division Similar  to multiplication  divisi...

Binary  Division Similar  to multiplication  division can be seen  multiple  subtractions.  For example  if we have to divide 9 by 4  we can subtract 4 ,2,  times  until is is

What is error-rate control, Q. What is error-rate control? A system is ...

Q. What is error-rate control? A system is said to possess error-rate damping when the generation of the output in some way depends upon the rate of change of the actuating sig

Explain about common control, Q. Explain about Common Control? Common C...

Q. Explain about Common Control? Common Control: Those systems in which the control subsystem is outside the switching network are known as common control switching system. Str

Determine the modulation index, An angle-modulated signal has the form u(t)...

An angle-modulated signal has the form u(t) = 100 cos [2πf c t+4 sin 2πf m t ],where f c =10MHz and f m = 1 kHz. Determine the modulation index β f or β p and the transmitted s

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