Why are the maximum value of VOL and the minimum value of VOH used to determine the noise margin rather than the typical values for these parameters?

these are worst-case conditions.

these are best-case conditions.

it doesn\t matter what values are used.

Why are the maximum value of VOL and the minimum value of VOH used to

1.	Why are the maximum value of VOL and the minimum value of VOH used to determine the noise margin rather than the typical values for these parameters?
A.	these are worst-case conditions.
B.	these are normal conditions.
C.	these are best-case conditions.
D.	it doesn\t matter what values are used.
Answer» B. these are normal conditions.

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Why are the maximum value of VOL and the minimum value of VOH used to determine the noise margin rather than the typical values for these parameters?

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