1 / 16

AOI Logic Analysis

AOI Logic Analysis. Digital Electronics. Analysis of Comb-Logic Circuits. Determine the circuit output’s truth-table and logic expression Determine the circuit’s intended function Determine whether a circuit is working properly. Did you analyze the circuit BEFORE you turned the power on?.

locke
Download Presentation

AOI Logic Analysis

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. AOI Logic Analysis Digital Electronics

  2. Analysis of Comb-Logic Circuits • Determine the circuit output’s truth-table and logic expression • Determine the circuit’s intended function • Determine whether a circuit is working properly Did you analyze the circuit BEFORE you turned the power on?

  3. Two Analysis Techniques Truth Table → Equation Technique Given A Logic Circuit . . . • Extract truth table • Derive logic expression Equation → Truth Table Technique Given A Logic Circuit . . . • Extract logic expression • Derive truth table

  4. Truth Table → Equation Technique The Process • Add test-points at the output of every gate. • Add a column to the truth table for every test-point. • Working from the inputs to the output, complete the truth table for each test-point, ultimately ending at the circuit’s output. • From the completed truth table, identify the Minterms from the truth table anywhere the output is one. • Using the extracted Minterms, write the Sum-Of-Products logic expression.

  5. Truth Table → Equation Process Walk-Thru Analyze the logic circuit shown below to determine the circuit’s truth-table. Using the truth table, derive the logic expression for the output F1.

  6. Truth Table → Equation Process Walk-Thru : Step (a) • Add test-points at the output of every gate. TP1 TP2 TP3 TP5 TP4

  7. Truth Table → Equation Process Walk-Thru : Steps (b) & (c) Add a column to the truth table for every test-point. Working from the inputs to the output, complete the truth table for each test-point, ultimately ending at the circuit’s output.

  8. Truth Table → Equation Process Walk-Thru : Steps (d) & (e) From the completed truth table, identify the Minterms from the truth table anywhere the output is one. Using the extracted Minterms, write the Sum-Of-Products logic expression.

  9. Example #1: Circuit Analysis • Example • Analyze the logic circuit shown below to determine the circuit’s truth table. Using the truth table, derive the logic expression for the output F2.

  10. Example #1: Circuit Analysis Solution TP1 a) TP2 TP3 TP4 TP5 b) & c) e) d) e)

  11. Equation → Truth Table Technique • The Process • Working from the inputs to the output, write the cumulating logic expression at the output of each gate concluding with the expression for the circuit’s output. • Using the circuit’s output logic expression, derive the circuit’s truth table.

  12. Equation → Truth Table Technique Process Walk-Thru Analyze the logic circuit shown below to determine the logic expression for the output F1. Using the logic expression, derive the circuit’s truth table.

  13. Equation → Truth Table Technique Process Walk-Thru : Step (a) Working from the inputs to the output, write the cumulating logic expression at the output of each gate concluding with the expression for the circuit’s output.

  14. Equation → Truth Table Technique Process Walk-Thru : Step (b) Using the circuit’s output logic expression, derive the circuit’s truth table.

  15. Example #2: Circuit Analysis • Example • Analyze the logic circuit shown below to determine the logic expression for the output F1. Using the logic expression, derive the circuit’s truth table.

  16. Example #2: Circuit Analysis Solution a) b)

More Related