Questions and answers

What is a 74151 multiplexer?

What is a 74151 multiplexer?

The TTL/MSI SN54/74LS151 is a high speed 8-input Digital Multiplexer. It provides, in one package, the ability to select one bit of data from up to eight sources. The LS151 can be used as a universal function generator to generate any logic function of four variables.

How do you use 74151 multiplexer?


  1. Make the connections as per the logic diagram.
  2. Switch ON the power supply.
  3. Apply the combinations of input one by one according it the truth table.
  4. Note its Corresponding output reading.
  5. Switch OFF the power Supply.
  6. Disconnect the components.

What is 74LS151?

What is multiplexer and demultiplexer PDF?

Multiplexer and Demultiplexer. A multiplexer is a circuit that accept many input but give only one output. A demultiplexer function exactly in the reverse of a multiplexer, that is a demultiplexer accepts only one input and gives many outputs.

What is the meaning of multiplexer?

In electronics, a multiplexer (or mux; spelled sometimes as multiplexor), also known as a data selector, is a device that selects between several analog or digital input signals and forwards the selected input to a single output line.

What is the function of IC 74138?

74138 is used to generate chip signals.

What is the output of IC 74151?

74HC151 is 8 – Input Multiplexer 16 Pin IC. Data Selector/Multiplexer contains full on-chip decoding to select one-of-eight data sources as a result of a unique three binary code at select inputs. Two complementary outputs provide both inverting and non-inverting buffer operation.

How many and gates are required for a 8 to 1 multiplexer?

From the above Boolean equation, the logic circuit diagram of an 8-to-1 multiplexer can be implemented by using 8 AND gates, 1 OR gate and 7 NOT gates as shown in below figure.

What is a 4-to-1 multiplexer?

A 4-to-1 multiplexer consists four data input lines as D0 to D3, two select lines as S0 and S1 and a single output line Y. The select lines S0 and S1 select one of the four input lines to connect the output line.

What is application of multiplexer?

A Multiplexer is used to increase the efficiency of the communication system by allowing the transmission of data such as audio & video data from different channels via cables and single lines.