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OR Gates

<^< AND Gates | Course Index | NAND Gates >^>

OR gates will produce a logic 1 output whenever any one, or more, inputs are at logic 1. Putting this another way, an OR gate will only produce a logic 0 output whenever all of its inputs are simultaneously at logic 0. The Boolean expression for the output, Y, of an OR gate with inputs, A and B, is:

Y = A + B

Logic 0, Logic 0 Logic 0, Logic 1 Logic 1, Logic 0 Logic 1, Logic 1

<^< AND Gates | Course index | NAND Gates >^>