Texas Instruments

SN74S04D

SN74S04D Description

The SN74S04D from Texas Instruments is a high-performance hex inverter IC belonging to the 74S series, designed for digital logic applications. Packaged in a 14-pin SOIC (Surface-Mount) form factor, it integrates six independent inverters (1-input each) with Schottky-clamped transistor technology for improved speed and noise immunity. Operating within a 4.75V to 5.25V supply range, it delivers a maximum propagation delay of 5ns at 5V/50pF, making it suitable for high-speed signal processing. Compliant with ROHS3 and REACH standards, it is ideal for industrial and commercial systems requiring reliable logic inversion.

SN74S04D Features

• Logic Type: Hex Inverter (6 independent channels).
• High-Speed Performance: 5ns propagation delay (5V, 50pF), outperforming standard TTL logic.
• Wide Voltage Range: 4.75V–5.25V operation, compatible with 5V systems.
• Robust I/O Levels: 0.8V (Low) and 2V (High) input thresholds for noise resilience.
• Output Drive: 1mA (High) / 20mA (Low) current capability for interfacing with diverse loads.
• Low Power Consumption: 24mA max quiescent current, optimizing energy efficiency.
• Durability: Schottky-diode clamping minimizes ringing and improves switching stability.
• Packaging: Tube-mounted 14-SOIC, suitable for automated PCB assembly.

SN74S04D Applications

• Clock Signal Conditioning: Inverts and buffers clock lines in microprocessors or FPGAs.
• Logic Level Shifting: Converts between TTL/CMOS levels in mixed-voltage systems.
• Pulse Shaping: Cleans up distorted digital signals in communication interfaces.
• Industrial Control Systems: Used in PLCs and motor drivers for signal inversion.
• Legacy Equipment Maintenance: Replaces obsolete inverter ICs in 5V-based designs.

Conclusion of SN74S04D

The SN74S04D stands out for its speed, reliability, and compatibility with 5V logic systems, making it a preferred choice for high-performance digital designs. Its Schottky technology ensures fast switching, while the industrial-grade temperature range (0°C–70°C) suits harsh environments. Though marked as Last Time Buy, it remains a dependable solution for legacy upgrades or new designs requiring proven TTL performance. Engineers value its balance of speed, power efficiency, and robust packaging for critical signal inversion tasks.