# exp6 - Digital Circuits and Logic Julian Weathersby Course...

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Digital Circuits and Logic Julian Weathersby Course: AME341 Lab Date: Tuesday, October 30, 2007 Lab Partner: Derek Luther

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Julian Weathersby Digital Circuits and Logic Results 7404 Rising Threshold Falling Threshold   Voltage Uncertainty Voltage Uncertainty V L 2.56 0.01 2.03 0.01 V H 3.11 0.01 2.88 0.01 V avg 2.84 0.27 2.46 0.42 Table 1: Rising and falling threshold values for the ordinary inverter (7404) 7414 Rising Threshold Falling Threshold   Voltage Uncertainty Voltage Uncertainty V L 1.96 0.01 1.44 0.01 V H 1.97 0.01 1.45 0.01 V avg 1.965 0.005 1.445 0.005 Table 2: Rising and falling threshold values for the Schmitt trigger inverter (7414) The values from tables 1 and 2 were taken from a computer-generated plot. The plot values were exported, and reconstructed using Excel producing the following: II -0.1 0.9 1.9 2.9 3.9 4.9 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1 T (s) Input Output Figure 1: Plot of input and output voltages of the ordinary inverter (7404) versus the time in seconds.
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## This note was uploaded on 02/28/2008 for the course AME 341AL taught by Professor Pottebaum during the Fall '07 term at USC.

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exp6 - Digital Circuits and Logic Julian Weathersby Course...

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