# 8 1 Multiplexer Circuit Diagram Truth Table

By | April 28, 2023

## 8-1 Multiplexer Circuit Diagram Truth Table

A multiplexer is a circuit that selects one of multiple input signals and routes it to a single output. The 8-1 multiplexer is a type of multiplexer that has eight input signals and one output signal. The selection of which input signal is routed to the output is controlled by three binary inputs, S0, S1, and S2. The truth table for an 8-1 multiplexer is shown below.

S0 S1 S2 Y
0 0 0 I0
0 0 1 I1
0 1 0 I2
0 1 1 I3
1 0 0 I4
1 0 1 I5
1 1 0 I6
1 1 1 I7

The 8-1 multiplexer can be constructed using a combination of AND gates, OR gates, and NOT gates. The following diagram shows a circuit diagram for an 8-1 multiplexer.

The 8-1 multiplexer is a versatile circuit that can be used in a variety of applications. For example, it can be used to select which of eight channels of audio is output to a speaker, or which of eight video signals is displayed on a monitor.

## Applications of 8-1 Multiplexers

8-1 multiplexers are used in a variety of applications, including:

*

### Audio and video switching:

8-1 multiplexers can be used to select which of multiple audio or video signals is output to a speaker or monitor. This is often used in home theater systems, where multiple sources of audio and video can be connected to a single display device. *

### Computer memory:

8-1 multiplexers can be used to select which of multiple memory locations is accessed by the CPU. This is necessary because the CPU can only access one memory location at a time. *

### Data routing:

8-1 multiplexers can be used to route data from one input port to one output port. This is useful in applications where multiple data sources need to be combined into a single data stream. *

### Digital logic:

8-1 multiplexers can be used to implement logic functions such as AND, OR, and XOR. This is useful in applications

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