NXP Semiconductors

74HC04D

74HC04D Description

The 74HC04D from NXP Semiconductors is a hex inverter IC belonging to the 74HC logic family, designed using CMOS technology for high-speed, low-power operation. Packaged in a 14-pin SO (Small Outline) surface-mount form factor, it integrates six independent inverters in a single chip. With a wide operating voltage range (2V to 6V), it supports 5V typical operation, making it compatible with TTL and other logic families. The device features a low quiescent current (2µA max) and delivers high noise immunity, ensuring reliable performance in mixed-signal environments. Its maximum propagation delay of 14ns at 6V (17ns at 4.5V, 85ns at 2V) and 50pF test condition make it suitable for high-speed digital applications.

74HC04D Features

• Hex Inverter Configuration: Six independent inverters in a single 14-pin package.
• Wide Voltage Range (2V–6V): Supports flexible power supply configurations.
• Low Power Consumption: Max quiescent current of 2µA enhances energy efficiency.
• High-Speed Operation: Propagation delay as low as 14ns at 6V, ideal for timing-critical circuits.
• CMOS Technology: Ensures low static power dissipation and high noise margins.
• Robust Output Drive: 5.2mA max low-level output current for driving moderate loads.
• Surface-Mount SO Package: Compact 8.75mm × 4mm × 1.5mm footprint for space-constrained designs.
• Industrial Temperature Range: Operates from -40°C to +125°C, suitable for harsh environments.

74HC04D Applications

The 74HC04D is widely used in digital systems requiring signal inversion, buffering, or waveform shaping, including:

• Clock Signal Conditioning: Inverting and squaring oscillator outputs for microcontrollers.
• Logic Level Conversion: Adapting signals between different voltage domains (e.g., 3.3V to 5V).
• Pulse Generation: Creating clean digital pulses for timing circuits and sensors.
• Interface Circuits: Serving as a buffer in bus-driven systems (I²C, SPI).
• Industrial Control Systems: Reliable operation in PLCs and motor drivers due to wide temperature tolerance.

Conclusion of 74HC04D

The 74HC04D stands out for its balance of speed, power efficiency, and integration, making it a versatile choice for digital logic design. Its CMOS-based architecture ensures compatibility with modern low-voltage systems, while the SO package facilitates high-density PCB layouts. Whether used in consumer electronics, automotive modules (non-Automotive grade), or industrial automation, this hex inverter delivers consistent performance with minimal power overhead. Engineers favor it for its cost-effectiveness, reliability, and ease of integration in diverse applications.