Build digital logic circuits with the 74LS02 Quad 2-Input NOR Gate IC. This compact 14-pin chip contains four independent NOR gates, each producing a HIGH output only when both inputs are LOW. Designed for a 5V supply (4.75–5.25V), it provides a practical building block for logic control, circuit prototyping, and educational electronics projects. Four gates in one IC let you implement multiple logic functions while keeping your circuit compact.