1. 多路复用器：
多路复用器是一个数据选择器，它接受多个输入并给出一个输出。在多路复用器中，我们有 2 n 条输入线和 1 条输出线，其中 n 是选择线的数量。
2.解复用器：
解复用器是一个数据分配器，它采用单个输入并提供多个输出。在解复用器中，我们有 1 个输入和 2 n 个输出线，其中 n 是选择线。
复用器和解复用器的区别：
| Multiplexer | Demultiplexer |
|---|---|
| Multiplexer processes the digital information from various sources into a single source. | Demultiplexer receives digital information from a single source and converts it into several sources |
| It is known as Data Selector | It is known as Data Distributor |
| Multiplexer is a digital switch | Demultiplexer is a digital circuit |
| It follows combinational logic type | It also follows combinational logic type |
| It has n data input | It has single data input |
| It has a single data output | It has n data outputs |
| It works on many to one operational principle | It works on one to many operational principle |
| In time division Multiplexing, multiplexer is used at the transmitter end | In time division Multiplexing, demultiplexer is used at the receiver end |