Friday, May 11, 2012

Half Adder Animation
















The half adder is an example of a simple, functional digital circuit built from two logic gates.  The half adder adds to one-bit binary numbers (AB).  The output is the sum of the two bits (S) and the carry (C). Note how the same two inputs are directed to two different gates.  The inputs to the XOR gate are also the inputs to the AND gate.  The input "wires" to the XOR gate are tied to the input wires of the AND gate; thus, when voltage is applied to the A input of the XOR gate, the A input to the AND gate receives the same voltage.

1 comment:

  1. The half adder adds to one-bit binary numbers (AB)

    should be

    The half adder adds two one-bit binary numbers (AB)

    ReplyDelete

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