Digital Electronics - Multivibrators and 555 Timer

Exercise :: Multivibrators and 555 Timer - True or False

1. 

When extremely critical timing is required, a quartz crystal can be used.

A. True
B. False

Answer: Option A

Explanation:

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2. 

In the 74121, which is nonretriggerable, any triggers that come in before the end of the timing cycle are ignored.

A. True
B. False

Answer: Option A

Explanation:

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3. 

A comparator simply outputs a HIGH or LOW based on a comparison of the voltage levels at its input.

A. True
B. False

Answer: Option A

Explanation:

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4. 

The 74S124 TTL chip is a voltage-controlled oscillator that will generate a specific frequency at Vout.

A. True
B. False

Answer: Option B

Explanation:

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5. 

A single Schmitt trigger inverter is all that is needed to build a simple astable multivibrator.

A. True
B. False

Answer: Option B

Explanation:

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