Curioustab

Home » Digital Electronics » Multivibrators and 555 Timer

The output of the astable circuit ________.

constantly switches between two states
is LOW until a trigger is received
is HIGH until a trigger is received
floats until triggered

Correct Answer: constantly switches between two states

← Previous Question Next Question→

More Questions from Multivibrators and 555 Timer

When a capacitor charges:
The pulse width out of a one-shot multivibrator increases when the:
What is another name for a bistable multivibrator?
A 0.3-µF capacitor has an initial charge of 2.7 V. If it is discharged through a 10-kΩ resistor for 6.5 ms, how much voltage will be left across the capacitor?
The bistable multivibrator is an R-C flip-flop.
A single Schmitt trigger inverter is all that is needed to build a simple astable multivibrator.
In the 74121, which is nonretriggerable, any triggers that come in before the end of the timing cycle are ignored.
When extremely critical timing is required, a quartz crystal can be used.
A comparator simply outputs a HIGH or LOW based on a comparison of the voltage levels at its input.
When the 74123, a retriggerable monostable multivibrator device, ends its timing cycle it must be started all over again.

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion