Define Flip flop.

Define Flip flop.
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1 Answer

Answer :

The basic unit for storage is flip flop. A flip-flop maintains its output state either at 1  or 0 until directed by an input signal to change its state.
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Related questions

What is a master-slave flip-flop?

Description : What is a master-slave flip-flop?

Last Answer : A master-slave flip-flop consists of two flip-flops where one circuit serves as a master and the other as a slave.

What is edge-triggered flip-flop?

Description : What is edge-triggered flip-flop?

Last Answer : The problem of race around condition can solved by edge triggering flip flop. The term edge triggering means that the flip-flop changes state either at the positive ... negative edge of the clock pulse and it is sensitive to its inputs only at this transition of the clock.

What is the operation of T flip-flop?

Description : What is the operation of T flip-flop?

Last Answer : T flip-flop is also known as Toggle flip-flop. • When T=0 there is no change in the output. • When T=1 the output switch to the complement state (ie) the output toggles.

What is the operation of JK flip-flop?

Description : What is the operation of JK flip-flop?

Last Answer : When K input is low and J input is high the Q output of flip-flop is set. When K input is high and J input is low the Q output of flip-flop is reset. When both the inputs ... are high it is possible to set or reset the flip-flop (ie) the output toggle on the next positive clock edge.

What is the operation of D flip-flop?

Description : What is the operation of D flip-flop?

Last Answer : In D flip-flop during the occurrence of clock pulse if D=1, the output Q is set and if D=0, the output is reset.

What are the different types of flip-flop?

Description : What are the different types of flip-flop?

Last Answer : There are various types of flip flops. Some of them are mentioned below they are, RS flip-flop SR flip-flop D flip-flop JK flip-flop T flip-flop

An eight stage ripple counter uses a flip-flop with propagation delay of 75 nanoseconds. The pulse width of the strobe is 50ns. The frequency of the input signal which can be used for proper operation of the counter is approximately (A) 1 MHz. (B) 500 MHz. (C) 2 MHz. (D) 4 MHz.

Description : An eight stage ripple counter uses a flip-flop with propagation delay of 75 nanoseconds. The pulse width of the strobe is 50ns. The frequency of the input signal which can be used for proper operation of the counter is approximately (A) 1 MHz. (B) 500 MHz. (C) 2 MHz. (D) 4 MHz.

Last Answer : Maximum time taken for all flip-flops to stabilize is 75ns x 8 + 50 = 650ns. Frequency of operation must be less than 1/650ns = 1.5 MHz.

The output of SR flip flop when S=1, R=0 is (A) 1 (B) 0 (C) No change (D) High impedance

Description : The output of SR flip flop when S=1, R=0 is (A) 1 (B) 0 (C) No change (D) High impedance

Last Answer : Ans: A As for the SR flip-flop S=set input R=reset input ,when S=1, R=0, Flip-flop will be set.

For JK flip flop with J=1, K=0, the output after clock pulse will be (A) 0. (B) 1. (C) high impedance. (D) no change.

Description : For JK flip flop with J=1, K=0, the output after clock pulse will be (A) 0. (B) 1. (C) high impedance. (D) no change.

Last Answer : (B) 1.

The MSI chip 7474 is (A) Dual edge triggered JK flip-flop (TTL). (B) Dual edge triggered D flip-flop (CMOS). (C) Dual edge triggered D flip-flop (TTL). (D) Dual edge triggered JK flip-flop (CMOS).

Description : The MSI chip 7474 is (A) Dual edge triggered JK flip-flop (TTL). (B) Dual edge triggered D flip-flop (CMOS). (C) Dual edge triggered D flip-flop (TTL). (D) Dual edge triggered JK flip-flop (CMOS).

Last Answer : Ans: C MSI chip 7474 dual edge triggered D Flip-Flop.

The device which changes from serial data to parallel data is (A) COUNTER (B) MULTIPLEXER (C) DEMULTIPLEXER (D) FLIP-FLOP

Description : The device which changes from serial data to parallel data is (A) COUNTER (B) MULTIPLEXER (C) DEMULTIPLEXER (D) FLIP-FLOP

Last Answer : Ans: C The device which changes from serial data to parallel data is demultiplexer. (A demultiplexer takes in data from one line and directs it to any of its N outputs depending on the status of the select inputs.)

The number of flip flops contained in IC 7490 is (A) 2. (B) 3. (C) 4. (D) 10.

Description : The number of flip flops contained in IC 7490 is (A) 2. (B) 3. (C) 4. (D) 10.

Last Answer : (A) 2.

How many flip-flops are required to construct mod 30 counter (A) 5 (B) 6 (C) 4 (D) 8

Description : How many flip-flops are required to construct mod 30 counter (A) 5 (B) 6 (C) 4 (D) 8

Last Answer : (A) 5

How many flip flops are required to construct a decade counter (A) 10 (B) 3 (C) 4 (D) 2

Description : How many flip flops are required to construct a decade counter (A) 10 (B) 3 (C) 4 (D) 2

Last Answer : Ans: C Decade counter counts 10 states from 0 to 9 ( i.e. from 0000 to 1001 ) Thus four FlipFlop's are required.

A 4-bit synchronous counter uses flip-flops with propagation delay times of 15 ns each. The maximum possible time required for change of state will be (A) 15 ns. (B) 30 ns. (C) 45 ns. (D) 60 ns.

Description : A 4-bit synchronous counter uses flip-flops with propagation delay times of 15 ns each. The maximum possible time required for change of state will be (A) 15 ns. (B) 30 ns. (C) 45 ns. (D) 60 ns.

Last Answer : Ans: A 15 ns because in synchronous counter all the flip-flops change state at the same time.

A ring counter consisting of five Flip-Flops will have (A) 5 states (B) 10 states (C) 32 states (D) Infinite states.

Description : A ring counter consisting of five Flip-Flops will have (A) 5 states (B) 10 states (C) 32 states (D) Infinite states.

Last Answer : Ans: A A ring counter consisting of Five Flip-Flops will have 5 states.

How many Flip-Flops are required for mod–16 counter? (A) 5 (B) 6 (C) 3 (D) 4

Description : How many Flip-Flops are required for mod–16 counter? (A) 5 (B) 6 (C) 3 (D) 4

Last Answer : (D) 4

Define Flip flop.

Description : Define Flip flop.

Last Answer : The basic unit for storage is flip flop. A flip-flop maintains its output state either at 1 or 0 until directed by an input signal to change its state.

Define Multivibrator. State the types of multivibrator. Which M/V can be used as a flip-flop? Draw the circuit diagram.

Description : Define Multivibrator. State the types of multivibrator. Which M/V can be used as a flip-flop? Draw the circuit diagram.

Last Answer : Definition:- A multivibrator is an electronic circuit that switches rapidly by means of positive feedback between two or more states.  OR  A multivibrator is an electronic circuit used to implement a ... Bistable Multivibrator: it can operate as a flip-flop, Circuit diagram 

Define flip flop.

Description : Define flip-flop.

Last Answer : Flip Flop: Flip-flop is a circuit which can be turned on and off with the same signal. It is like a single switch button when the first time you press it turns on and when second time you press ... flip-flop like SR flip-flop, D flip-flop, JK flip-flop, SR flip-flop, master-slave flip-flop etc.

Define Asynchronous sequential circuit?

Description : Define Asynchronous sequential circuit?

Last Answer : In asynchronous sequential circuits change in input signals can affect memory element at any instant of time.

Define synchronous sequential circuit

Description : Define synchronous sequential circuit

Last Answer : In synchronous sequential circuits, signals can affect the memory elements only at discrete instant of time.

Define shift registers.

Description : Define shift registers.

Last Answer : The binary information in a register can be moved from stage to stage within the register or into or out of the register upon application of clock ... arithmetic and logic operations used in microprocessors. This gives rise to group of registers called shift registers.

Define registers.

Description : Define registers.

Last Answer : A register is a group of flip-flops flip-flop can store one bit information. So an n-bit register has a group of n flip-flops and is capable of storing any binary information/number containing n-bits.

Define race around condition.

Description : Define race around condition.

Last Answer : In JK flip-flop output is fed back to the input. Therefore change in the output results change in the input. Due to this in the positive half of the clock pulse if both J and K are high then output toggles continuously. This condition iscalled ‘race around condition’.

Define multiplexer

Description : Define multiplexer

Last Answer : Multiplexer is a digital switch. If allows digital information from several sources to be routed onto a single output line.

Define Encoder?

Description : Define Encoder?

Last Answer : An encoder has 2n input lines and n output lines. In encoder the output lines generate the binary code corresponding to the input value.

Define Decoder

Description : Define Decoder

Last Answer : A decoder is a multiple - input multiple output logic circuit that converts coded inputs into coded outputs where the input and output codes are different.

Define Half adder and full adder

Description : Define Half adder and full adder

Last Answer : The logic circuit that performs the addition of two bits is a half adder. The circuit that performs the addition of three bits is a full adder.

Define combinational logic

Description : Define combinational logic

Last Answer : When logic gates are connected together to produce a specified output for certain specified combinations of input variables, with no storage involved, the resulting circuit is called combinational logic.

I had a great uncle who said a 'flip-flop' was an old slang word for a radio. Has anyone else ever heard this?

Description : I had a great uncle who said a 'flip-flop' was an old slang word for a radio. Has anyone else ever heard this?

Last Answer : I never heard of that. I’m 67.

When I look at her, my heart does a flip-flop. Why?

Description : When I look at her, my heart does a flip-flop. Why?

Last Answer : JP Must be a case of puppy love. You made me stop and look at the picture of my two goldens that I keep on my desk. I lost them a few years ago. Enjoy every minute of your time with her.

Is the flip flop sandals on guys a fad or is it here to stay?

Description : Is the flip flop sandals on guys a fad or is it here to stay?

Last Answer : They are here to stay. I don't wear them because I'm desperate to fit in. I wear them because I like air on my feet. I'm also used to colder temperatures, so it's not a big deal to wear them ... better because there is colder air on my feet and they are easy to slip on if I have to run out quickly.

What is SR flip-flop ?

Description : What is SR flip-flop ?

Last Answer : SR Flip-flop is the simplest flip flop. The full form of SR is - Set Reset . In SR flip-flop, setting the output state to 1 or HIGH is called SET and 0 or LOW is called RESET . SR flip- ... formed by connecting two NAND gates or NOR gates and connecting the input of one to the output of the other .

How many flip flop are required to store the binary value of 1101?

Description : How many flip flop are required to store the binary value of 1101?

Last Answer : What is the answer ?

15 things you never knew about tarek and christina from flip or flop?

Description : 15 things you never knew about tarek and christina from flip or flop?

Last Answer : Answer written by Urbo.com in March 21 2016It all started as an office romance.Tarek and Christina met at a real estate office. "We started our relationship working together," Christina said. Was it ... Scott's "Brother vs. Brother." What impromptu HGTV appearances are in store for them this year?

What's That Flip Flop Feeling My Heart Is Making?

Description : What's That Flip Flop Feeling My Heart Is Making?

Last Answer : A heart arrhythmia can be a life-threatening situation and requires medical attention. If you suffer with this heart condition chances are that you have already been counseled on avoiding stimulants. ... this activity will bring the heart back under control until medical attention can be consulted.

In a computer is capable to store single binary bit. A) Capacitor B) Flip flop C) Register D) Inductor

Description : In a computer is capable to store single binary bit. A) Capacitor B) Flip flop C) Register D) Inductor

Last Answer : Answer : B

Which of the following features is predicted by the Nicolson–Singer fluid mosaic model of biological membranes? (A) Membrane lipids do not diffuse laterally (B) Membrane lipid is primarily in a monolayer form (C) Membrane lipids freely flip-flop (D) Membrane proteins may diffuse laterally

Description : Which of the following features is predicted by the Nicolson–Singer fluid mosaic model of biological membranes? (A) Membrane lipids do not diffuse laterally (B) Membrane lipid is primarily in a monolayer form (C) Membrane lipids freely flip-flop (D) Membrane proteins may diffuse laterally

Last Answer : Answer : D

Which of the following is not a magnetic memory: a) Flip-flop b) Tape c) Drum d) Disk

Description : Which of the following is not a magnetic memory: a) Flip-flop b) Tape c) Drum d) Disk

Last Answer : Ans: A

The circuit used to store one bit of data is known as_____ A. Encoder B. OR C. Flip Flop D. None of the Above

Description : The circuit used to store one bit of data is known as_____ A. Encoder B. OR C. Flip Flop D. None of the Above

Last Answer : C. Flip Flop

Which Flip Flop is used to store data in registers? (A) D Flip Flop (B) JK Flip Flop (C) RS Flip Flop (D) None of the Above

Description : Which Flip Flop is used to store data in registers? (A) D Flip Flop (B) JK Flip Flop (C) RS Flip Flop (D) None of the Above

Last Answer : (A) D Flip Flop

The schematic diagram shown in the illustration represents which of the listed solid-state circuits? EL-0069 A. Bridge rectifier B. Magnetic amplifier C. Flip-flop generator D. Cathodic amplifier

Description : The schematic diagram shown in the illustration represents which of the listed solid-state circuits? EL-0069 A. Bridge rectifier B. Magnetic amplifier C. Flip-flop generator D. Cathodic amplifier

Last Answer : Answer: A

In which computers, the binary number are represented by a set of binary storage device such as flip flop: a. Microcomputer b. Personal computer c. Digital computer

Description : In which computers, the binary number are represented by a set of binary storage device such as flip flop: a. Microcomputer b. Personal computer c. Digital computer

Last Answer : c. Digital computer

Register are assumed to use positive-edge-triggered _ a. Flip-flop b. Logics Cc. Circuit d. Operation

Description : Register are assumed to use positive-edge-triggered _ a. Flip-flop b. Logics Cc. Circuit d. Operation

Last Answer : a. Flip-flop

The bits are shifted and the first flip-flop receives its binary information from the____ a. Serial output b. Serial input c. Both d. None

Description : The bits are shifted and the first flip-flop receives its binary information from the____ a. Serial output b. Serial input c. Both d. None

Last Answer : b. Serial input

According to widely accepted “fluid mosaic model” cell membranes are semi-fluid, where lipids and integral proteins can diffuse randomly. In recent years, this model has been modified in several respects. In this regard, which of the following statements is incorrect? (a) Proteins in cell membranes can travel within the lipid bilayer. (b) Proteins can also undergo flip-flop movements in the lipid bilayer. (c) Proteins can remain confined within certain domains of the membrane.(d) Many proteins remain completely embedded within the lipid bilayer.

Description : According to widely accepted fluid mosaic model cell membranes are semi-fluid, where lipids and integral proteins can diffuse randomly. In recent years, this model has been modified in several ... domains of the membrane. (d) Many proteins remain completely embedded within the lipid bilayer.

Last Answer : (b) Proteins can also undergo flip-flop movements in the lipid bilayer.

Keeping in view the ‘fluid mosaic model’ for the structure of cell membrane, which one of the following statement is correct with respect to the movements of lipids and proteins from one lipid monolayer to the other (described as flip-flop movement)?(a) While proteins can flip-flop, lipids can not (b) Neither lipids, nor proteins can flip-flop (c) Both lipids and proteins can flip-flop (d) While lipids can rarely flip-flop, proteins cannot.

Description : Keeping in view the fluid mosaic model' for the structure of cell membrane, which one of the following statement is correct with respect to the movements of lipids and proteins from one lipid ... ) Both lipids and proteins can flip-flop (d) While lipids can rarely flip-flop, proteins cannot.

Last Answer : (d) While lipids can rarely flip-flop, proteins cannot.

Which of the following circuit is used as a 'Memory device' in computers? 1) Rectifier 2) Flip-Flop 3) Comparator 4) Attenuator

Description : Which of the following circuit is used as a 'Memory device' in computers? 1) Rectifier 2) Flip-Flop 3) Comparator 4) Attenuator

Last Answer : 2) Flip-Flop

In a Computer_________ is capable to store single binary bit. 1) Capacitor 2) Flip Flop 3) Register 4) Inductor

Description : In a Computer_________ is capable to store single binary bit. 1) Capacitor 2) Flip Flop 3) Register 4) Inductor

Last Answer : 2) Flip Flop