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EE2751_Lab3report

# EE2751_Lab3report - Heath J LeBlanc Mariel Losso EE 2731...

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Heath J LeBlanc Mariel Losso 10/11/05 EE 2731 Section 3, Group 5 Experiment 3 - Boolean Function Realization using Decoders and Multiplexers

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Three input Majority Logic Circuit Part 1: 2b) Design and build a 3-input majority logic circuit using one 8 to1 multiplexer. Digital Inputs: Data Inputs: Minterms and maxterms from M=∑ C,B,A ( 3,5,6,7) Select Lines: C, B, and A from switches Clock: None. Digital Output: M Truth Table: C B A M 0 0 0 0 0 0 1 0 0 1 0 0 0 1 1 1 1 0 0 0 1 0 1 1 1 1 0 1 1 1 1 1 Since C, B, and A are the select lines which determine the minterm or maxterm of M, the function can be expressed using an 8 to 1 mux by grounding all of the maxterms and pulling up all of the minterms to Vcc using a pull up resistor. This leads to the following design. (Note: we used a 10 kΩ resistor for the pull up resistor).
Logic Diagram: Control Inputs: None. Power Inputs: Supply Pin#16 Chip# 74LS151 Ground Pin#8 Chip# 74LS151 Part 2: 2c) Design and build a 3-input majority logic circuit using one 4 to1 multiplexer and a

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EE2751_Lab3report - Heath J LeBlanc Mariel Losso EE 2731...

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