What is a multiplexer question and answer?
Digital Circuits Questions and Answers – Multiplexers (Data Selectors) – 1. A multiplexer (or MUX) is a device that selects one of several analog or digital input signals and forwards the selected input into a single line, depending on the active select lines.
How do you solve a multiplexer question?
How to solve?
- The first step is to select the multiplexer.
- Connect the inputs, that correspond to the given minterms to logic 1.
- Connect all the other inputs to the ground(logic 0).
- Connect the input variables(P, Q, R) as the selection lines.
What is multiplexer formula?
2n : 1 MUX requires (2^n – 1) 2 : 1 MUX. b) 16 : 1 MUX using 4 : 1 MUX. In general, to implement B : 1 MUX using A : 1 MUX , one formula is used to implement the same.
What situation multiplexing is used?
Multiplexing is used in situations where the transmitting media is having higher bandwidth, but the signals have lower bandwidth. Hence there is a possibility of sending number of signals simultaneously.
Which is the best question for a multiplexer?
This set of Digital Electronics/Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Multiplexers (Data Selectors) – 1”. 1. What is a multiplexer?
How are multiplexers used in digital logic circuit?
Multiplexers in Digital Logic. It is a combinational circuit which have many data inputs and single output depending on control or select inputs. For N input lines, log n (base2) selection lines, or we can say that for 2 n input lines, n selection lines are required. Multiplexers are also known as “Data n selector, parallel to serial convertor,
How many control lines are there in a multiplexer?
Explanation: 2 n input lines, n control lines and 1 output line available for MUX. Here, 8 input lines mean 2 3 inputs. So, 3 control lines are possible. Depending on the status of the select lines, the input is selected and fed to the output.
What are the input and output of a multiplexer?
1. For the circuit shown in the following figure, I0 – I3 are inputs to the 4:1 multiplexer, R (MSB) and S are control inputs. The output Z can be represented by