demultiplekseriä

Demultiplexing is a process in electronics and telecommunications that involves separating a single data stream into multiple separate output streams. This is the inverse operation of multiplexing, where multiple data streams are combined into a single stream. A demultiplexer, often called a demux, is a digital circuit that performs this function. It has a single input line and multiple output lines. A select or address input determines which output line will receive the data from the input line. For example, a 1-to-4 demultiplexer has one input and four outputs. Control signals on the select lines dictate which of the four outputs is connected to the input.

The primary purpose of a demultiplexer is to route data to its intended destination. This is crucial in systems where a single communication channel is shared among several devices or users. In digital systems, demultiplexers are used to distribute data from a central processing unit to various peripheral devices. They are also employed in communication networks to direct incoming data to the correct receiver. The number of output lines is typically a power of two, such as 2, 4, 8, or 16, corresponding to the number of bits required to address each output. The logic of a demultiplexer ensures that only one output line is active at any given time, carrying the data from the single input.