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hw2sol

hw2sol - XOR is not a universal logic element since it...

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HW2 - SOLUTIONS 1. The following figure demonstrates the implementation of the NOT, AND, OR, and XOR gates using the two-input NOR gate. The basis for many of these functions uses a combination of DeMorgan’s laws and other Boolean Algebra simplifications. Similarly NAND is a universal logic element since NAND and NOR are duals of each other, any function that NOR implements, NAND can implement the dual of that function. Since XOR and XNOR are complements of each other, combining NOT and XNOR can be implemented with NAND gates.

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Unformatted text preview: XOR is not a universal logic element, since it cannot implement NOT just using the inputs X and Y without leaving an input disconnected. 2. Here define H 1S to be the sum output and H 1C to be the carryout of the first half adder that takes inputs A and B. H 2S is the sum output and H 2C is the carryout of the second half adder that takes H 2S and C in as inputs. The output of H 2S is equivalent to S for the full adder, and OR is equivalent to C out of the full adder. 3. 4. 5. 6. 7. 8. 9....
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hw2sol - XOR is not a universal logic element since it...

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