Build a NOT Gate on a Breadboard: Easy Steps & Circuit Explanation

A Not gate, also known as an inverter. It is one of the basic and fundamental logic gates in the Digital circuits. It has a single input and a single output. The function of the NOT gate is to revert/reverse the given input. This means that if the input is LOW('0'), it will convert it into HIGH('1'). But if the input is HIGH('1'), it will convert it to LOW('0'). In other words, if you turn it on it will show no output when it is off it will show output. Each NOT gate has 6 gates that we can work with.

In this post, we will build a simple NOT Gate using a breadboard. For you to build a NOT Gate, it is important to read and implement it using the instructions given below.

Instructions and Steps:

1. For this, we will use the IC 74LS04. Remember this IC can only be used with a maximum voltage of 5V. Any higher voltage can cause the IC to burn or damage. For this, we are using an analog and digital trainer.
   
   This IC has 14 pins in total. The pin numbers are given below
   
   
   As pin number 14 represents the +ve terminal of the IC while pin Number 7 represents the -ve terminal of the IC Chip. The Number for each IC is written on the IC.
   
   
   

   
   
2. Now use a breadboard to build the circuit. Place the IC on the breadboard and connect the IC with the power supply using Jumper Wires
3. Now use 1 Switch, which will act as an input to the IC. The chip used here has 6 Gates in total. one end of the switch is connected to the +ve Terminal while the other is connected to the IC and its input.
   The structure of the Gate of IC is Given Below.
   
4. For input, we can use pin Number 1,3,5,9,11,13. This pin can only be used as an input. While for output we will use pin number 2,4,6,8,10,12 only. As they are used for outputt purposes.
5. Now connect the output to the +ve pin of the LED light
6. Now connect one end of the resister of resistance 100-110 ohm to the -ve terminal and the other end with the -ve terminal of the LED light as the 5V may damage or burn the light so the resister will decrease the Voltage up to 1.2 to 3.6V
7. You can see whether the circuit built is working properly or not use the following Table to verify.
   

   
   

For the proper simulation and to see the final result click on the Button given below