7400 NAND Gate IC
Number of Gates: The 7400 IC contains four NAND gates. This means you have four independent logic gates in a single package.
Pin Configuration: The pinout of a typical 7400 IC is as follows:
- Pins 1 and 2: Inputs (A and B) for the first NAND gate.
- Pins 3: Output (Y) for the first NAND gate.
- Pins 4 and 5: Inputs (A and B) for the second NAND gate.
- Pins 6: Output (Y) for the second NAND gate.
- Pins 7 and 8: Inputs (A and B) for the third NAND gate.
- Pins 9: Output (Y) for the third NAND gate.
- Pins 10 and 11: Inputs (A and B) for the fourth NAND gate.
- Pins 12: Output (Y) for the fourth NAND gate.
- Pins 13: Supply voltage (VCC).
- Pins 14: Ground (GND).
Truth Table: The truth table for a 2-input NAND gate is as follows:
Input A Input B Output (Y) 0 0 1 0 1 1 1 0 1 1 1 0 In this truth table, "0" represents a logic low or "false," while "1" represents a logic high or "true."
Operation: The NAND gate performs a logical AND operation on its inputs and then negates the result. The output is "0" (logic low) only when both inputs are "1" (logic high). In all other cases, the output is "1" (logic high).
Note: You can use the 7400 IC to implement various logic functions and construct digital circuits. It's a fundamental building block in digital electronics and is commonly used for tasks such as signal inversion, logic level conversion, and logical gate applications.