## How many NOR gates are required?

To make a NOR gate perform the NAND function, we must invert all inputs to the NOR gate as well as the NOR gate’s output. For a two-input gate, this requires three more NOR gates connected as inverters.

## How many NAND gates are required for XNOR gate?

The number of 2-input NAND gates required to implement a 2-input XOR gate is 4.Logic GatesMin. number of NOR GateMin. number of NAND GateNAND41NOR14Half-Adder55Half-Subtractor55

## Can Xnor have 3 inputs?

3 Input XNOR Gate Like the XOR gate, an XNOR gate only exists with two inputs, but for XNOR operation with more than two inputs, we have to use more than one XNOR gates.

## What is the combination of NOR gate?

NOR gate is actually a combination of two logic gates: OR gate followed by NOT gate. So its output is complement of the output of an OR gate. This gate can have minimum two inputs, output is always one.

## How many NOR gates do you need to convert 1 AND gate?

AND: You need three NOR gates to create an AND gate. The first two are configured as NOT gates, so they invert the inputs. Then the third NOR gate produces a HIGH output if both of the original inputs are HIGH. NAND: It takes four NOR gates to create a NAND gate.

## How does a XNOR gate work?

An XNOR gate (sometimes referred to by its extended name, Exclusive NOR gate) is a digital logic gate with two or more inputs and one output that performs logical equality. The output of an XNOR gate is true when all of its inputs are true or when all of its inputs are false.

XNOR Gate.
Input AInput BOutput
truetruetrue

## What are basic gates?

All digital systems can be constructed by only three basic logic gates. These basic gates are called the AND gate, the OR gate, and the NOT gate. Some textbooks also include the NAND gate, the NOR gate and the EOR gate as the members of the family of basic logic gates.

## How many logic gates are there?

There are seven basic logic gates: AND, OR, XOR, NOT, NAND, NOR, and XNOR. The AND gate is so named because, if 0 is called “false” and 1 is called “true,” the gate acts in the same way as the logical “and” operator.

## Why NAND & NOR gates are called universal gates?

Answer: The NAND & NOR gates are called universal gates because they perform all the logical operations of basis gates like AND, OR, NOT. Answer: … NOR AS AND An AND gate gives a 1 output when both inputs are 1; a NOR gate gives a 1 output only when both inputs are 0.

## What are the main gates that make up the XNOR gate?

Simply, it is the combination of the XOR gate and NOT gate. The output level of the XNOR gate is high only when both of its inputs are the same, either 0 or 1. The symbol of the XNOR gate is the same as XOR, only complement sign is added.

## How many and gates are required to realize the following expression Y AB BC?

2 AND gates
6. How many AND gates are required to realize the following expression Y=AB+BC? Explanation: 2 AND gates are required to realize the expression.

## Is Xnor a universal gate?

From the opposite perspective, constructing other gates using only XNOR gates is possible though XNOR is not a fully universal logic gate. NOT and XOR gates can be constructed this way.

## Which is better NAND OR NOR?

NAND gate has better ratio of output high drive and output low drive as compared to NOR gate. Hence NAND gate is preferred over NOR. In CMOS technology we use silicon as semiconductor material.

## How many AND gates are required to realize the following expression y CD EF G?

two AND gates
Explanation: To realize Y = CD + EF + G, two AND gates are required and two OR gates are required.

## How many universal gates are there?

We have two universal gates – NAND gate and NOR gate. Note: The NAND gate is the abbreviation for Not AND and the NOR gate is the abbreviation for Not OR. In digital circuits we mostly use the NANA and the NOR gate to perform the operation of all the gates because these gates are economical and easier to fabricate.

## What is a NOR logic gate?

The NOR gate is a digital logic gate that implements logical NOR – it behaves according to the truth table to the right. A HIGH output (1) results if both the inputs to the gate are LOW (0); if one or both input is HIGH (1), a LOW output (0) results. NOR is the result of the negation of the OR operator.

## How many and gates are required to realize y CD EF G 4 5 3 2?

Explanation: to realize y = cd + ef + g, two and gates are required and two or gates are required.

## How many two input AND and OR gates are required for the following expression y CD EF G *?

Discussion ForumQue.How many two-input AND and OR gates are required to realize Y=CD+EF+Gb.2,3c.3,3d.none of theseAnswer:2,2•Jul 13, 2020

## How many NAND gates are required for or?

Three NAND gates are used as shown in diagram and give a new logic gate.

## How many and gates are required for a 1 to 8 multiplexer?

For a 1 to 8 multiplexer a total of 8 AND gates are required.

## How many and OR and EXOR gates are required for the configuration of full adder Mcq?

Explanation: There are 2 AND, 1 OR and 2 EXOR gates required for the configuration of full adder, provided using half adder. Otherwise, configuration of full adder would require 3 AND, 2 OR and 2 EXOR.

## How many NAND gates are required to realize y AB a B?

Therefore simply take A as output and ignore all other inputs and hence the minimum number of NAND gates required is 0.

## How many and gates are required for 1 to 16 de multiplexer?

1 to 16 demultiplexer has one input data, four select lines A, B, C and D and 16 output lines Y0 to Y15. This is implemented using AND and NOT gate. 1 to 16 demultiplexer is implemented using the logic circuit below. This can be implemented using 1 to 8 demultiplexer, 1 to 4 demultiplexer and 1 to 2 demultiplexer.

## How many and gates are required for 16 to 1 multiplexer?

16×1 Multiplexer We know that 8×1 Multiplexer has 8 data inputs, 3 selection lines and one output. Whereas, 16×1 Multiplexer has 16 data inputs, 4 selection lines and one output. So, we require two 8×1 Multiplexers in first stage in order to get the 16 data inputs.