For the logic families,
a. Explain the role of role of VIH and VOH.
b. why Fan in and Fan Out must be specified .
a. role of VIH is this is minimum voltage level applied at the input that recognized as a legal high level for a specified family
role of VOH this is minimum voltage on the output pin of a logic function when the input conditions establish logic HIGH at the output for a specified family.
b. The Fan out is the capability of a logic gate to drive the maximum number of similar gates. High fan out is advantageous because it reduces the need of additional gates to drive the more number of gates.
Fan in is the number of inputs to a gate . For a two input gate,fan in its two.
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