Logic Gate (AND Gate)

AND Gate

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 following illustration and table show the circuit symbol and logic combinations for an AND gate. (In the symbol, the input terminals are at left and the output terminal is at right.) The output is "true" when both inputs are "true." Otherwise, the output is "false." In other words, the output is 1 only when both inputs one AND two are 1.

   
    1) Symbol and Truth table

    2) Component 

-Button               : 2
-Transistor 2N2222 : 7

-Diode 1N4004     : 4
-LED                        : 1

-Male Pin                : 2

-Resistor  3.9K : 1

                 2K     : 1

                 1.5K  : 1

                 1K     : 2

                 120R : 3

     3) Schematic

   4) PBC Layout

   5) 3D View

   6) Final Result