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All about digital GATES



Truth table: A Y ----- 0 = 0 1 = 1 Input signal is just buffered, e.g. to drive more current or several other gates.

Truth table: A Y ----- 0 = 1 1 = 0 Input signal inverted (negated)

Truth table: A B Y ------- 0 0 = 0 0 1 = 0 1 0 = 0 1 1 = 1 Both inputs need to be HIGH to give HIGH output.

Truth table: A B Y ------- 0 0 = 1 0 1 = 1 1 0 = 1 1 1 = 0 Both inputs need to be HIGH to give LOW output.

Truth table: A B Y ------- 0 0 = 0 0 1 = 1 1 0 = 1 1 1 = 1 Both inputs need to be LOW to give LOW output, rsp. at least 1 input must be HIGH to give HIGH output.

Truth table: A B Y ------- 0 0 = 1 0 1 = 0 1 0 = 0 1 1 = 0 Both inputs need to be LOW to give HIGH output.

Truth table: A B Y ------- 0 0 = 0 0 1 = 1 1 0 = 1 1 1 = 0 Both inputs need to be EQUAL to give LOW output.

Truth table: A B Y ------- 0 0 = 1 0 1 = 0 1 0 = 0 1 1 = 1 Both inputs need to be EQUAL to give HIGH output.