DIGITAL ELECTRONICS LAB

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Digital Electronics Lab

Written by Administrator

Sunday, 25 October 2009 07:16

OBJECTIVE:

To understand the NOT, AND & OR Get by varying the truth table.

APPARATUS REQUIRED:

1. Trainer board                   01 Piece
2. Power supply                   01 Piece
3. NOT get (74LS04)           01 Piece
4. AND get(74LS08)    01 Piece
5. OR get(74LS32)              01 Piece
6. LED (light emitting diode) 01 Piece
7. Wire                                Lots

DIAGRAM:

TRUTH TABLES:

NOT Get:
--------------------------
A1          V1
--------------------------
0            1
1            0
--------------------------

AND Get:
------------------------------------
A1          B1          V1
------------------------------------
0            0            1
1            0            1
0            1            0
0            0            1
------------------------------------

OR Get:
------------------------------------
A1          B1           V1
------------------------------------
0            0             1
1            0             1
0            1             0
1            1             1
------------------------------------

DISCUSSION:

In my sense, to observe the actual performances of the different Gets in laboratory, first of all we have to take an error less trainer board and must check the LED is it light or not? Because, we faced that type of problem in trainer board in this experiment. Another very important thing is the label number of IC. Such as – 74LS04 is for NOT get, it carries 6 NOT gets; 74LS08 is for AND get, it carries 4 AND gets; 74LS32 is for OR get which carries 4 OR gets and all the three ICs are 14 pined IC. So we should be ensured about the gets by watching the label number of the IC, otherwise it will be impossible to reach to the expectation. So, by doing this experiment I think that every body should be more conscious about these above things.

Here is more 9 lab reports for you:

Experiment # 02