Which of these pins will allow to activate and deactivate a multiplexer?
2024
Which of these pins will allow to activate and deactivate a multiplexer?
- A.
Enable pin
- B.
Selection pin
- C.
Present pin
- D.
More than one of the above
- E.
None of the above
Attempted by 233 students.
Show answer & explanation
Correct answer: A
The Enable (E or EN) pin acts as a master switch for the integrated circuit.
Active State: When the Enable pin is "active" (usually logic
0for active-low or logic1for active-high), the multiplexer functions normally, passing the selected input to the output.Inactive State: When the Enable pin is "inactive," the multiplexer is disabled. In this state, the output is typically held at logic
0or placed in a high-impedance state (Hi-Z), regardless of what is happening at the selection or input pins.