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LAB WORK PERFORMANCE.

 

1. Demonstrate presence of your home preparation for lab work to your instructor.

2. Pass test of 10 questions.

3. Get a permission to begin the work.

4. Mount the scheme of experiment 3A on the breadboard and perform it.

5. Make a conclusion about functionality of the scheme. Compare your results with theoretical ones.

6. Demonstrate your results to your instructor. If your results are correct you may dismount your scheme, if no – find the mistake.

7. Repeat steps 4 to 6 for experiment 3B, 3C, 3D.

8. Be ready to answer your instructor’s questions in process of work.

9. Complete your work, dismount your schemes, clean your working place.

10. Answer your instructor’s final questions, obtain your mark.

11. Ask your instructor’s permission to leave.

 


Experiment 3A. Realize the following circuit on a breadboard. Do not forget to connect 7th pin of 7404 chip to GND (0V) and 14th pin to VCC (+5V). Connecting X-input to either GND or VCC based on the following table, fill in the blanks. Write ON or OFF for LEDs.

 

  INPUT OUTPUT
  X LED1 LED2
0V    
5V    

As a result, this truth table belongs to a …………………………….

 

 

Experiment 3B. Realize the following circuit on a breadboard. Connecting X, and Y inputs to either GND or VCC based on the following table, fill in the blanks. Write ON or OFF for LEDs, and a voltage value for F.

 

 

      INPUTS OUTPUTS
  X Y LED1 LED2 LED3 F (V)
0V 0V        
0V 5V        
5V 0V        
5V 5V        

 



As a result this truth table belongs to a ……………………………………………….


Experiment 3C. Realize the following circuit on a breadboard. Do not forget to connect 7th pin of 7400 chip to GND (0V) and 14th pin to VCC (+5V). Connecting X-input to either GND or VCC based on the following table, fill in the blanks. Write ON or OFF for LEDs.

 

 

      INPUTS OUTPUTS
  X Y LED1 LED2 LED3 F (V)
0V 0V        
0V 5V        
5V 0V        
5V 5V        

 



As a result this truth table belongs to a ………………………………….

 

 

Experiment 3D. Design XNOR gate on the same scheme basis. Draw the XNOR scheme with application of Scheme Design System.

      INPUTS OUTPUTS
  X Y LED1 LED2 LED3 F (V)
0V 0V        
0V 5V        
5V 0V        
5V 5V        

 



As a result this truth table belongs to a ………………………………….


TEST QUESTIONS

 

1. Function # _____ corresponds to function AND of 3 variables.

X y z F1 F2 F3 F4 F5

A. 1 B. 2 C. 3 D. 4 E. 5

2. The truth table for XOR gate is:

A   B   C   D   E  
X Y F X Y F X Y F X Y F X Y F
                                       

 

3.A small-scale integration (SSI) device contains __________ gates in a single chip.

A. thousands of B. From10 to 1000 C. More than 100

D. From 10 to 100 E. less than 10

 

4. (XY)´ is algebraic expression of ________ function.


Date: 2015-12-11; view: 841


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