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logic·IEEE 91·education·complexity 2/3

Logic gate: 1-bit full adder

The textbook 1-bit full adder — two XORs compute the sum bit, two ANDs and an OR generate the carry-out. Every intro digital-logic course lands on this circuit; every ALU is built from it.

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logic-gate·§ IEEE 91-1984
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1-bit Full Adder Logic gate diagram with 5 gates, 3 inputs, 2 outputs XOR AND XOR AND OR A B Cin Sum Cout 1-bit Full Adder
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