CS4141 Digital Systems Lab Report
Cover Sheet
Experiment:
Name:
NetID:
Partner:
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
0
0
1
1
B
0
1
0
1
|
|
|
|
|
Y
1
1
1
0
Logic diagram:
A
B
Y
IC Circuit design wiring diagram:
Switch 1 (A)
Switch 2 (B)
LED (Y.)
connection
Ground (0V.)
connection
1
2
3
4
5
6
7
14
13
12
11
10
9
8
Vcc (+5V.)
connection
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.
Truth Table Test:
Sw1
Gnd
Gnd
Vcc
Vcc
Sw2 |_Led1
Gnd | On
Vcc | On
Gnd | On
Vcc | Off
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