Digital Logic

1.  VERIFY THE OPERATIONS OF BASIC GATES
2.  VERIFY THE OPERATION OF 3 INPUT OR GATE( USING MULTIPLE GATE)
3.   VERIFY THE OPERATION OF 3 INPUT AND GATE( USING MULTIPLE GATE)
4.  VERIFY THE OPERATION OF 3 INPUT OR GATE (USING SINGLE GATE)
5. VERIFY THE OPERATION OF 3 INPUT AND GATE( USING SINGLE GATE

1.1 OBJECTIVE: TO VERIFY THE OPERATIONS OF AND GATE.

 BASIC THEORY:

A logic gate is an elementary building block of a digital circuit. Most logic gates have two inputs and one output. The logic state of a terminal can, and generally does, change often, as the circuit processes data. The AND gate is so named because, if 0 is called "false" and 1 is called "true," the gate acts in the same way as the logical "and" operator. The IC (Integrated Circuit) used in AND gate is IC‐7408.

           

BOOLEAN EXPRESSION: Y=A.B

CIRCUIT DIAGRAM:

                                                            

                                                 

 
     1.2 OBJECTIVE: TO VERIFY THE PROPERTY OF OR GATE

BASIC THEORY:

The two input OR gate responds with a logic‐1 output if any input signal is logic‐1.The output produces a logic‐0 signal if all input signals are logic‐0.It performs logical addition, commonly known as OR functions. The IC (Integrated Circuit) used in OR gate is IC‐7432.

BOOLEAN EXPRESSION: Y=A+B

CIRCUIT DIAGRAM:

    1.3 OBJECTIVE: TO VERIFY THE PROPERTY OF NOT GATE.

BASIC THEORY:

The NOT gate inverts a binary signal i.e. output produces a logic‐0 if input signal is logic‐1 and the output produces a logic‐1 signal if input signal is logic‐0. It has only one input. It performs basic logical operations called inversion or complementation. The IC (Integrated Circuit) used in NOT gate is IC‐7404.

BOOLEAN EXPRESSION: Y=A`

CIRCUIT DIAGRAM:

    

     1.4 OBJECTIVE: TO VERIFY THE PROPERTY OF 3 INPUT OR GATE USING MULTIPLE GATES.

BASIC THEORY:

           

            The three input OR gate responds with a logic‐1 output if any input signal is logic‐1.The output produces a logic‐0 signal if all input signals are logic‐0.It performs logical addition, commonly known as OR functions. The IC (Integrated Circuit) used in OR gate is IC‐7432 both the time.

CIRCUIT DIAGRAM

   

     1.5 OBJECTIVE: TO VERIFY THE PROPERTY OF 3 INPUT AND GATE USING MULTIPLE GATES.

BASIC THEORY:

            The three input AND gate responds with a logic‐1 output if all three input signals are logic‐1.The output produces a logic‐0 signal if any input is logic‐0. It performs logical multiplication, commonly known as AND functions. The IC (Integrated Circuit) used in AND gate is IC‐7408.

CIRCUIT DIAGRAM:

     

     1.6 OBJECTIVE: TO VERIFY THE PROPERTY OF 3 INPUT AND GATE USING SINGLE GATE.

BASIC THEORY:

            The three input AND gate responds with a logic‐1 output if all three input signals are logic‐1.The output produces a logic‐0 signal if any input is logic‐0. It performs logical multiplication, commonly known as AND functions. The IC (Integrated Circuit) used in AND gate is IC‐7408.

     

  

      1.7 OBJECTIVE: TO VERIFY THE PROPERTY OF 3 INPUT OR GATE USING SINGLE GATE.

BASIC THEORY:

           

            The three input OR gate responds with a logic‐1 output if any input signal is logic‐1.The output produces a logic‐0 signal if all input signals are logic‐0.It performs logical addition, commonly known as OR functions. The IC (Integrated Circuit) used in OR gate is IC‐7432 both the time.

CIRCUIT DIAGRAM: