7400 IC

The 7400 IC is a standard TTL logic IC that contains four independent 2-input NAND gates in a single 14-pin DIP package. NAND is a universal logic gate, which means any digital logic circuit can be built using only NAND gates. This IC is widely used in digital electronics, learning kits, and logic circuit designs.

Key Features

• Contains 4 × 2-input NAND gates

• TTL logic family (74xx series)

• Fast switching speed

• Operates at 5V DC

• Standard 14-pin DIP package

• Easy to interface with other 74-series ICs

• Reliable and long-lasting performance

Pin Configuration (Summary)

• Inputs: A & B for each NAND gate

• Outputs: One output per gate

• Pin 7: GND

• Pin 14: VCC (+5V)

Working Principle

Each NAND gate gives a LOW output only when both inputs are HIGH.
For all other input combinations, the output remains HIGH.

Applications

• Digital logic circuits

• Logic gate trainers & lab experiments

• Signal inversion and control circuits

• Clock and timing circuits

• Educational projects

• DIY electronics and prototyping