Digital Electronics - Multivibrators and 555 Timer
Exercise : Multivibrators and 555 Timer - True or False
- Multivibrators and 555 Timer - General Questions
- Multivibrators and 555 Timer - True or False
1.
When extremely critical timing is required, a quartz crystal can be used.
2.
In the 74121, which is nonretriggerable, any triggers that come in before the end of the timing cycle are ignored.
3.
A comparator simply outputs a HIGH or LOW based on a comparison of the voltage levels at its input.
4.
The 74S124 TTL chip is a voltage-controlled oscillator that will generate a specific frequency at Vout.
5.
A single Schmitt trigger inverter is all that is needed to build a simple astable multivibrator.
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