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# Digital logic and design's Lab 3

Digital logic and design's lab 3

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### Digital logic and design's Lab 3

1. 1. 2014 DLD lab 3 F.Ansari N F C , F S D
2. 2. Lab. No. 3 Objective: To perform operation of OR gate according to OR gate truth table using IC 74lS32 Apparatus: 1. IC 74LS32 2. Wires 3. Cutter 4. AM 2001 Trainer Integrated Circuit (IC): AM Trainer 2001:
3. 3. Truth Table of OR gate: Truth table Inputs Output A B C = A + B 0 0 0 0 1 1 1 0 1 1 1 1 Procedure: 1. I took wires and cut them with the help of cutter. 2. I connect the IC on the breadboard. 3. I took a wire (white) and connect it at 7 pin and grounded it. 4. I connect two wires (Orange and blue) at pin 1 and 2 and connected it to switches S2 and S3. 5. Then I connected one end of brown wire with pin 3 to get output and other end with LED (l4) 6. Then we give power supply through pin 14 with the help of another wire (green) which is +5V 7. Now we started giving inputs through switches S2 and S3 respectively. 8. Firstly, we give 1 input to switch S2 and 0 input to switch S3, and as a result we get LED (L4) turn on, which indicates that we get output 1. 9. Secondly, we give 0 input to switch S2 and 1 input to switch S3, and as a result we get LED (L4) turn on, which indicates that we get output 1. 10. Thirdly, we give 1 input to switch S2 as well as 1 input to switch S3, and as a result we get LED (L4) turn on, which indicates that we get output 1. 11. At the end, we give 0 input to switch S2 as well as 0 input to switch S3, and as a result we get LED (L4) remains turn off, which indicates that we get output 0. Result: Hence I verified the truth table of OR gate using IC 74LS32.

Digital logic and design's lab 3

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