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HW6

HW6. Due on 11/8/11. Use 74LS86D and 7408N to implement a half-adder. Build a full adder from two half adders. Build a 3 bit adder from two-one full bit adder and one bit half-adder. You can reuse circuits by building subcircuits . (Please see the next slide).

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HW6

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  1. HW6 Due on 11/8/11

  2. Use 74LS86D and 7408N to implement a half-adder. • Build a full adder from two half adders. • Build a 3 bit adder from two-one full bit adder and one bit half-adder. • You can reuse circuits by building subcircuits. (Please see the next slide)

  3. Adding Subcircuits to a Circuit (1) Please look at MultiSim’s help for adding subcircuit

  4. Top-level schematic

  5. Submission Check List • Schematic of the Half-Adder Subcircuit • Schematic of the Full Adder Subcircuit • Schematic of the 3-bit Adder • Submit the top level schematic of the following arithmatic: • 2+1=? • 2-1=?

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