Selection of Input Line in a Multiplexer

A multiplexer is a combinational circuit that selects one of several input lines and routes it to a single output line. The selection of a particular input line in a multiplexer is controlled by the selected lines.

What are Selected Lines?

Selected lines, also known as select lines or control lines, are the inputs to the multiplexer that determine which input line is selected. The number of selected lines required in a multiplexer depends on the number of input lines. For example, if there are 2^n input lines, n select lines are required.

Working of a Multiplexer

A multiplexer consists of two main components: input lines and selected lines. The input lines carry the data that needs to be selected, and the selected lines control the selection process. The selected lines are connected to the control inputs of the logic gates inside the multiplexer.

Logic Gates in a Multiplexer

The logic gates inside a multiplexer perform the selection process. The selected lines are connected to the control inputs of these gates. The logic gates compare the binary values of the selected lines and generate the necessary control signals to select the appropriate input line.

Data Controller

The data controller is not directly involved in the selection of input lines in a multiplexer. The data controller is responsible for managing the data flow and controlling the timing of the multiplexer. It ensures that the data is properly synchronized and routed to the correct output.

Conclusion

In conclusion, the selection of a particular input line in a multiplexer is controlled by the selected lines. The selected lines are connected to the control inputs of the logic gates inside the multiplexer. These gates compare the binary values of the selected lines and generate the necessary control signals to select the desired input line. The data controller, on the other hand, is responsible for managing the data flow and controlling the timing of the multiplexer.