Introduction to Demultiplexer(1:2 DEMUX) Video Lecture | Analog and Digital Electronics - Electrical Engineering (EE)

Ans. A demultiplexer, also known as a DEMUX, is a digital circuit that takes a single input and selects one of many possible outputs based on the control signals provided. In other words, it is used to route a single input signal to one of the multiple output lines.

Ans. A 1:2 demultiplexer has one input line, two output lines, and one control signal. When the control signal is 0, the input signal is directed to the first output line, and when the control signal is 1, the input signal is directed to the second output line. It essentially divides or demultiplexes the original input signal into two separate output signals.

Ans. Demultiplexers are used in various applications, such as: - Data routing in communication systems: Demultiplexers are used to route data to specific destinations in communication systems, ensuring that the information reaches the intended recipient. - Memory addressing: Demultiplexers are used in memory systems to select specific memory locations for reading or writing data. - Display systems: Demultiplexers can be used to control multiple segments of a digital display, such as a seven-segment display, by selecting the appropriate segments based on the input signal. - Address decoding: Demultiplexers are commonly used in digital systems to decode address signals and select specific devices or memory locations based on the input address. - Data distribution: Demultiplexers are used to distribute data from a single source to multiple destinations, allowing for parallel processing or data transmission.

Ans. While a demultiplexer routes a single input signal to multiple output lines based on control signals, a multiplexer performs the opposite function. A multiplexer, also known as a MUX, selects one of many input lines and routes it to a single output line based on control signals. In essence, a demultiplexer splits the input signal, whereas a multiplexer combines multiple input signals into a single output.

Ans. Yes, demultiplexers can be cascaded or connected in series to achieve a higher number of outputs. By connecting the output lines of one demultiplexer to the input lines of another demultiplexer, the number of output lines can be increased. For example, two 1:2 demultiplexers can be cascaded to create a 1:4 demultiplexer, where a single input can be directed to one of four output lines based on the control signals provided.