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triple 3 input positive NOR gate

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sanjay94

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what is triple 3 input positive NOR gate...iam using SN74LS27N IC ...plz describe briefly....ty
 

Triple means the package includes 3 of these NOR gates. Positive means the gates are responding to positive logic states (high (or "1") is active, low (or "0") is inactive). Valid for inputs and output.
 

If you don't know what a triple NOR gate is, its a gate that ONLY outputs high if all the inputs are low. If any (or all) inputs are high then the output is low.
Datasheet with logic table + more
 

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