Two Input NAND Gate
Category: Logic Gates
Designer: RANA MUHAMMAD ADNAN KHALIL
Notes
This circuit is designed and simulated in Proteus 7.10. In this circuit you will learn how to make NAND gate practically. 1. This is a two input NAND gate circuit. 2. The truth table of NAND gate is: In 1: In 2 : Out 0 : 0 : 1 0 : 1 : 1 1 : 0 : 1 1 : 1 : 0 3. From the above truth table we can see that if all or any input of NAND gate is logic zero (0) then output is logic one (1). 4. The output is logic zero (0) only when all inputs are logic one (1). 5. Here logic one (1) means +5Vdc and logic zero (0) means 0V or ground. 6. NAND gate is made by serially connecting AND gate output to the input of NOT gate. 7. The number of inputs can be increased by increasing the number of diodes. Application: 1. This circuit is used to understand the working of NAND gate. 2. This circuit is used when you don't have NAND gate IC and you need NAND gate. Download these files for performing more experiments.