The following logic diagram contains one standard logic gate

The following logic diagram contains one standard logic gate (an inverter) and two 3-state gates. Each 3-state gate is indicated by the symbol \"3.s.\" near its output, and each is enabled by an active-low signal shown at the side of the gate. Write a Boolean equation that describes the output F of this logic diagram, as a function of the signals A, B, and E. In what sense is the diagram shown above related to the concept of a multiplexer? Provide a brief description.

Solution

a)F=A.Sbar+B.S+E.S

F=B.Sbar+E.S+A.S

F=E.Sbar+B.S+A.S

b) Multiplexer :

1.Multiplexer is a device that share the one input to as a resource or a device from among the several inputs based on the lines

2.The multiplexer can also be called as an selector in the digital logic design.

3.In multiplexer we can have 2^n inputs and n selection line but it should have only one output.

4.By using multiplexer we can send or share digital or analog signal at high speed on a signal line in a shared device.

5.It consists of multiple inputs and it have only one output.

6.We have circuites of mutliplexers as 2 to 1 multiplexer circuit ,4 to 1 multiplexer circuit etc.

7.We have different types of multiplexers time division multiplexer, frequency division multiplexer ,wave division multiplexer etc.