## How many 2 input logic functions are there?

# How many 2 input logic functions are there?

Table of Contents

## How many 2 input logic functions are there?

16 possible

Learn about all 16 possible logic functions that can be realized for two binary inputs. Boolean logic has been ruling the world of computational digital systems for many decades.

### How many possible logic gates are there for 2 input gates?

16 possible logic gates

For 2 logical inputs, there are 16 possible logic gates. Table 1 defines the 16 logic gates, shows logical symbol, behavior in symbolic logic, provides name, notes. People are most familiar with the ones that are named: NAND, NOR, AND, OR, XOR.

**Can logic gates take more than 2 inputs?**

Yes, and in fact it’s very common. Take a look at the data sheet for the CD4025BMS dual 3-input NOR gate + 1 NOT gate chip. As the longer name implies, it has two NOR gates each of which take 3 inputs. Conceptually, any logic gate can be composed of just two-input gates and NOT gates.

**How many combinations of inputs are there for a 2 inputs logic circuit?**

As was mentioned previously in this chapter, a two input gate has four possibilities (00, 01, 10, and 11). A three-input gate has eight possibilities (000, 001, 010, 011, 100, 101, 110, and 111) for input states.

## How many possible gates are there with two inputs and one output group of answer choices?

16

For example, the gate A and B is a logic gate with 2 inputs and 1 output. There are exactly 16 of them, because: each logic gate takes two inputs, which can be truthy or falsey, giving us 4 possible inputs.

### How many NOR gates are required to represent a 2 input AND gate?

Similarly, the number of 2-input NOR gates required to implement a 2-input XNOR gate is 4.

**How many possible gates are there with two inputs and one output?**

**Can both or and AND gates can have only two inputs?**

Both OR and AND gates can have only two inputs.

## How many two input and and or gates are required?

Explanation: There are three product terms. So, three AND gates of two inputs are required. As only two input OR gates are available, so two OR gates are required to get the logical sum of three product terms….Digital Circuits Questions and Answers – Logic Gates and Networks – 1.

INPUT | OUTPUT | |
---|---|---|

0 | 0 | 1 |

0 | 1 | 0 |

1 | 0 | 0 |

1 | 1 | 1 |

### How many 2-input NOR gates are needed to implement a 2-input OR gate?

Therefore, the minimum number of 2-input NOR gates needed to implement the function is 3.

**How many two input AND and OR gates are required to realize?**

How many two input AND gates and two input OR gates are required to realize Y = BD + CE + AB? Explanation: There are three product terms. So, three AND gates of two inputs are required. As only two input OR gates are available, so two OR gates are required to get the logical sum of three product terms.