74HC04D: The Ultimate Hex Inverter IC for Advanced Digital Circuits

The 74HC04D from Toshiba Semiconductor is a premium-quality hex inverter IC that has become an industry standard for digital logic applications. This surface-mount 14-SOIC packaged device delivers exceptional performance with its six independent inverters, making it ideal for modern electronics requiring signal inversion, waveform shaping, and logic level conversion.

In-Depth Technical Specifications

Core Electrical Characteristics

• Wide Voltage Range: Operates from 2V to 6V DC, compatible with TTL and CMOS levels
• High-Speed Operation: Typical propagation delay of 9ns at 4.5V with 15pF load
• Low Power Consumption: Quiescent current of just 1 A (max) for battery-sensitive designs
• Balanced Output Drive: 5.2mA output current (both sourcing and sinking)
• Noise Immunity: 30% VCC noise margin ensures reliable operation

Advanced Performance Metrics

Package Details & PCB Design Considerations

The 14-SOIC (Small Outline Integrated Circuit) package measures just 3.9mm 8.65mm 1.5mm, offering exceptional board space efficiency. Key PCB layout recommendations:

• Use 0.3mm trace width for power lines
• Maintain 0.5mm clearance between adjacent signals
• Include 100nF decoupling capacitors within 5mm of VCC
• Thermal relief pads recommended for production soldering

Comprehensive Application Guide

1. Clock Signal Conditioning

The 74HC04D excels at cleaning up noisy clock signals in microcontroller systems. Its fast edge rates (typically 4ns rise/fall time at 4.5V) make it perfect for:

• SPI/I2C signal regeneration
• Crystal oscillator buffering
• Clock distribution networks

2. Logic Level Conversion

With its wide operating voltage range, the IC serves as an effective level shifter between:

• 5V TTL and 3.3V CMOS systems
• Battery-powered 2V circuits and standard logic
• Mixed-voltage FPGA interfaces

3. Waveform Generation Circuits

When configured with RC networks, the 74HC04D creates:

• Precision square wave oscillators (up to 50MHz)
• Pulse width modulators
• Schmitt trigger alternatives

Reliability & Environmental Specifications

Toshiba's rigorous quality control ensures:

• ESD protection exceeding 2000V (HBM)
• Industrial temperature range (-40 C to +125 C)
• Moisture sensitivity level (MSL) of 1 (unlimited floor life)
• Lead-free/RoHS compliant construction

Design Alternatives & Complementary Components

For specialized applications, consider:

• 74HC14: Hex inverter with Schmitt trigger inputs
• 74AC04: Faster version (4ns typical delay)
• CD4049: Higher voltage capability (up to 18V)

Purchasing & Technical Support

Our inventory includes genuine Toshiba 74HC04D parts with full traceability. Each order includes:

• Manufacturer datasheet
• SPICE simulation models
• Application notes
• Design review support

For volume production, we offer reel packaging (2500 pieces per reel) with custom kitting options. Contact our technical team for assistance with your specific design challenges involving the 74HC04D or other logic ICs.