## What is flip flop in DE?

A flip-flop is a device which stores a single bit (binary digit) of data; one of its two states represents a “one” and the other represents a “zero”. Such data storage can be used for storage of state, and such a circuit is described as sequential logic in electronics.

### What are the Viva questions asked in digital electronics?

Digital Electronics Interview Questions

• 1) What is the difference between Latch And Flip-flop?
• 2) What is the binary number system?
• 3) State the De Morgan’s Theorem?
• 4) Define Digital System?
• 5) What is meant by a bit?
• 6) What is the best Example of Digital system?
• 7) How many types of number system are there?

#### What is Flip Flop interview questions?

Flip Flop Interview Question Answer – 1

1 Describe the difference between combinational circuit and sequential circuit?
9 Which is simplest type of flip flop?
S R flip flop
10 What is reason behind the name SR flip flop?
There are two inputs SET ( S ) and RESET ( R ) in the flip flop so it is called as SR flip flop.

What are the characteristics of digital ICs?

Important characteristics of digital ICs

• Fan out.
• Power dissipation.
• Propagation Delay.
• Noise Margin.
• Fan In.
• Operating temperature.
• Power supply requirements.

What are the 4 types of flip-flops?

They are:

• Latch or Set-Reset (SR) flip-flop.
• JK flip-flop.
• T (Toggle) flip-flop.
• D (Delay or Data) flip-flop.

## Why flip-flops are used?

A flip flop is an electronic circuit with two stable states that can be used to store binary data. The stored data can be changed by applying varying inputs. Flip-flops and latches are fundamental building blocks of digital electronics systems used in computers, communications, and many other types of systems.

### What is a digital waveform?

A Digital Waveform Carries Binary. Information. • All binary information in digital systems appear. as waveforms that represent sequences of bits.

#### What is fan in and fan out?

Fan-in refers to the maximum number of input signals that feed the input equations of a logic cell. Fan-out refers to the maximum number of output signals that are fed by the output equations of a logic cell.

What is T type flip-flop?

The T flip-flop is also called toggle flip-flop. It is a change of the JK flip-flop. The T flip flop is received by relating both inputs of a JK flip-flop. The T flip-flop is received by relating the inputs ‘J’ and ‘K’. When T = 0, both AND gates are disabled.

Why latches are faster than flip-flop?

Latches are faster, flip flops are slower. Latch is sensitive to glitches on enable pin, whereas flip-flop is immune to glitches. Latches take less gates (less power) to implement than flip-flops.

## What is IC and its types?

There are two types of IC manufacturing technologies one is monolithic technology and other is hybrid technology. In monolithic technique, all electronic component and their interconnections are manufactured together into a single chip of silicon.

### What is speed of operation in digital IC?

1) Speed of operation:

The speed of a digital circuit is specified in terms of the propagation delay time. If the propagation delay time is lower, the speed of the IC is higher.

#### Where is flip-flop used?

Applications of Flip-Flops
Frequency dividers. Counters. Storage registers. Shift registers.

Why we use JK flip flop?

A J-K flip-flop is nothing more than an S-R flip-flop with an added layer of feedback. This feedback selectively enables one of the two set/reset inputs so that they cannot both carry an active signal to the multivibrator circuit, thus eliminating the invalid condition.

What is a signal shape?

In electronics, acoustics, and related fields, the waveform of a signal is the shape of its graph as a function of time, independent of its time and magnitude scales and of any displacement in time.

## What is signal and its types?

Information converted into an electrical form suitable for transmission is called a signal. There are two types of signals; Analog and Digital. Analog signals are continuous variations of current and voltage whereas digital signals are those that have discrete stepwise value (0 = Low, 1 = High)

### What is fan output?

In digital circuitry, fan-out is a measure of the maximum number of digital inputs that the output of a single logic gate can feed without disrupting the circuitry’s operations. Most transistor-to-transistor logic (TTL) gates can support up to 10 other digital gates or devices.

#### Which logic circuit is the fastest?

Emitter-coupled logic (ECL)
Emitter-coupled logic (ECL) is the fastest logic circuit family available for conventional logic-system design.

Why is it called D flip-flop?

In D flip flop, the single input “D” is referred to as the “Data” input. When the data input is set to 1, the flip flop would be set, and when it is set to 0, the flip flop would change and become reset.

Why D flip-flop is called delay?

The working of D flip flop is similar to the D latch except that the output of D Flip Flop takes the state of the D input at the moment of a positive edge at the clock pin (or negative edge if the clock input is active low) and delays it by one clock cycle. That’s why, it is commonly known as a delay flip flop.

## What are the 4 types of flip flops?

### What are the types of latches?

Here are the most common types of latches:

• Cam Latches. Cam latches are simple and cost-effective mechanical devices consisting of a body that’s typically attached to the cabinet door and a cam lever attached to a door opening.
• ​Compression Latches.
• Slam Latches.
• Draw Latches.
• Sliding Latches.
• Hasps.

#### Why IC is used?

An IC can function as an amplifier, oscillator, timer, counter, logic gate, computer memory, microcontroller or microprocessor. An IC is the fundamental building block of all modern electronic devices.

What are limitations of IC?

Integrated circuits are not flexible. It is impossible to fabricate transformers. The IC will not work properly if wrongly handled or it must be exposed to excessive heat. The power that integrated circuits can produce is limited and calls for extension.

Which is faster CMOS or TTL?

TTL chips are generally faster than CMOS gates (but see ACT series), however there are two logic technologies faster than TTL-Emitter-coupled logic (ECL) and gallium arsenide (GaAs). These chips come at considerable cost in power consumption and ease of interface to other logic families.