74AUP3G3404GSX

Overview

The Nexperia 74AUP3G3404GSX is a low-power logic device featuring a dual buffer and a single inverter within an 8-terminal XSON package (SOT1203). It operates across a wide supply voltage range of 0.8 V to 3.6 V, ensuring high noise immunity and low static power consumption with a maximum ICC of 0.9 μA at -40 °C to +85 °C. The inputs incorporate Schmitt trigger action for tolerance to slow rise and fall times. The device includes IOFF circuitry to prevent damaging backflow currents during partial power-down applications.

Feature Summary

• Schmitt trigger action on all inputs provides tolerance for slower input transition rates.
• IOFF circuitry enables partial power-down mode by disabling outputs to prevent backflow current.
• High noise immunity with low overshoot and undershoot characteristics relative to the supply voltage.

Applications

• Partial power-down systems requiring protection against backflow current
• Signal buffering and inversion in low-voltage digital circuits
• Interfaces handling signals with slow rise and fall times

Procurement Notes

Verify the specific suffix GSX corresponds to the SOT1203 XSON8 package variant when sourcing. Confirm that the required operating temperature range aligns with the specified -40 °C to +125 °C limits. Ensure design margins account for the dynamic power dissipation calculations provided in the datasheet to maintain reliability under varying load conditions.

Selection Notes

Select this component for designs requiring mixed buffer and inverter functions in a minimal footprint. The 74AUP series offers lower power consumption compared to standard CMOS families while maintaining compatibility with voltages down to 0.8 V. Consider the XSON8 package dimensions if board space is constrained, noting the leadless construction suitable for automated surface-mount assembly.

Part Context

This part belongs to the Nexperia 74AUP family of advanced ultra-low power logic devices. The 74AUP3G3404 specifically integrates three independent logic gates: two non-inverting buffers and one inverting buffer. It is designed for portable and battery-operated applications where minimizing energy usage is critical without sacrificing signal integrity or switching speed.

Replacement Considerations

The 74AUP3G3404DC serves as a functional equivalent utilizing the VSSOP8 package. Designers must verify pinout compatibility and thermal performance differences between the XSON8 and VSSOP8 footprints before substitution.

FAQ

How does the device handle partial power-down scenarios?

The integrated IOFF circuitry disables the outputs when the device is powered down, preventing damaging backflow current from flowing through the device into the powered-down section.

What is the purpose of the Schmitt trigger inputs?

The Schmitt trigger action ensures that the circuit remains tolerant of slower input rise and fall times across the entire supply voltage range, improving noise immunity.