onsemi

MC74HC02ANG

MC74HC02ANG Description

The MC74HC02ANG from onsemi is a high-performance quad 2-input NOR gate IC belonging to the 74HC series, designed for through-hole (DIP-14) mounting. Operating within a 2V to 6V supply range, it delivers a maximum propagation delay of 13ns @ 6V, 50pF, ensuring fast signal processing in digital circuits. With low quiescent current (1 µA max) and symmetrical output drive capability (5.2mA sink/source), it balances power efficiency and performance. This device is obsolete but remains relevant for legacy designs due to its robustness and compatibility with TTL input levels.

MC74HC02ANG Features

• Logic Type: Quad 2-Input NOR Gate (4 independent gates per IC).
• Wide Voltage Range: Supports 2V–6V, making it versatile for mixed-voltage systems.
• Low Power Consumption: 1 µA max quiescent current ideal for battery-operated devices.
• High Noise Immunity: Compliant with CMOS logic levels (Input High: 1.5V–4.2V, Input Low: 0.5V–1.8V).
• Balanced Output Drive: 5.2mA output current ensures reliable signal integrity.
• Through-Hole Package: 14-pin DIP for easy prototyping and repair.
• Environmental Compliance: REACH Unaffected and MSL 1 (Unlimited) for unrestricted shelf life.

MC74HC02ANG Applications

• Digital Logic Systems: Used in combinational logic circuits, such as flip-flops and multiplexers.
• Signal Conditioning: Ideal for noise filtering due to high noise margin.
• Industrial Control: Suitable for PLC interfaces and legacy equipment requiring DIP packaging.
• Embedded Systems: Low-power operation benefits microcontroller-based projects.
• Educational Kits: Commonly used in electronics labs for teaching logic gate fundamentals.

Conclusion of MC74HC02ANG

While marked obsolete, the MC74HC02ANG remains a reliable choice for through-hole designs requiring high-speed NOR gates with low power consumption. Its wide voltage range and CMOS/TTL compatibility make it adaptable to diverse applications, from industrial controls to educational setups. Engineers valuing ease of prototyping and proven performance may still leverage this IC in legacy or low-volume projects.