CS4141 Digital Systems Lab Report

CS4141 Digital Systems Lab Report Cover Sheet

Experiment:

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Date of Experiment:

Date of Report Submission: 1. Experiment Goal: Perform a quick experiment to become familiar with the IDL-800. The goal is to prototype and verify that a TTL IC for a Boolean NAND yields the correct truth table gate.

2. Changes: No changes were necessary.

3. Answers: to all questions in the laboratory procedure sheets. Answers should be stated clearly and illustrated by expressions, tables, or diagrams as required.

4. Diagrams: _____ Boolean equation: Y= A • B

Truth Table: A B | Y 0 0 | 1 0 1 | 1 1 0 | 1 1 1 | 0

Logic diagram: A Y B

IC Circuit design wiring diagram:

Switch 1 (A) 1 14 Vcc (+5V.) connection Switch 2 (B) 2 13 LED (Y.) 3 12 connection 4 11 5 10 6 9 Ground (0V.) 8 connection 7

5. Statements of Results: I was able to successfully wire the breadboard and run tests for the SN74LS00 Quad gate NAND IC. I then tested the four possible results by watching the LED display as I entered each set of test values on the data switches. There were no problems with the hardware. 6. Discussion of Results: I was able to verify that the truth table obtained in test of my logic circuit showed below agreed with the predicted NAND truth table described in section 4 above.

7. Summary and Conclusions: I was able to create an actual working circuit that operated as expected from the Boolean equation for a NAND operator. This was my first hands on experience with mapping 0V and +5V to the Boolean values of 0 and 1, true and false.

Acknowledgment: Prof. Herman Harrison