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Discussion Solutions 5

# Discussion Solutions 5 - 0 0 1 J1 0 1 0 J2 0 1 1 J3 A S C F...

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EEN 304 – Logic Design Homework 29 Discussion Session 5: 1. Show how two 2-to-1 multiplexers (with no added gates) could be connected to form a 3-to-1 MUX. Input selection should be as follows: If AB = 00, select I 0 If AB = 01, select I1 If AB = 1X (B is a don't care), select I2 2. Show how two 4-to-1 and one 2-to-1 multiplexers could be connected to form an 8-to- 1 MUX with three control inputs.

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EEN 304 – Logic Design Homework 30 3. Show how four 2-to- 1 and one 4-to-1 multiplexers could be connected to form an 8- to-1 MUX with three control inputs. 4. Show how to make a 4-to-1 MUX, using an 8-to-1 MUX. S A B F 0 0 0 J0
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Unformatted text preview: 0 0 1 J1 0 1 0 J2 0 1 1 J3 A S C F 0 1 0 J0 0 1 1 J1 1 1 0 J2 1 1 1 J3 EEN 304 – Logic Design Homework 31 5. Implement a full adder using two 8-to-1 MUXes. Connect X, Y, and C in to the control inputs of the MUXes and connect 1 or 0 to each data input. X Y Cin Sum Cout 0 0 0 0 0 0 0 1 1 0 0 1 0 1 0 0 1 1 0 1 1 0 0 1 0 1 0 1 0 1 1 1 0 0 1 1 1 1 1 1 6. Implement a full adder using two 4-to-1 MUXes and one inverter. Connect X and Y to the control inputs of the MUXes, and connect 1's, 0's, C in , or C i ,; to each data input. X Y Cin Sum Cout 0 0 0 0 0 0 0 1 1 0 0 1 0 1 0 0 1 1 0 1 1 0 0 1 0 1 0 1 0 1 1 1 0 0 1 1 1 1 1 1...
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Discussion Solutions 5 - 0 0 1 J1 0 1 0 J2 0 1 1 J3 A S C F...

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