74HC3G34DP-Q100H

Overview

The Nexperia 74HC3G34DP-Q100H is an automotive-grade triple buffer gate from the 74HC series, designed for high-speed CMOS applications. It operates within a supply voltage range of 2.0 V to 6.0 V and features CMOS input switching levels. The device is qualified to AEC-Q100 Grade 1 standards and supports operating temperatures from -40 °C to +125 °C. Packaged in an 8-lead TSSOP (SOT505-2), it provides three non-inverting buffers with clamp diodes on inputs for interfacing voltages exceeding VCC.

Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 standards
• Wide supply voltage operation ranging from 2.0 V to 6.0 V
• High noise immunity and low-power CMOS dissipation
• Robust ESD protection exceeding 2000 V HBM and 1000 V CDM

Applications

• Automotive electronic systems requiring robust logic buffering
• Signal conditioning for interfaces exceeding standard VCC levels
• General-purpose digital signal buffering in harsh environments

Procurement Notes

Verify that the specific ordering suffix matches the required package type, as the Q100 designation indicates automotive qualification but does not define the physical footprint. Confirm the temperature grade aligns with system requirements, noting that this component is specified up to +125 °C ambient temperature. Ensure design margins account for the absolute maximum ratings regarding clamping currents and total power dissipation derating.

Selection Notes

Select this component when a triple buffer is needed for automotive or industrial environments demanding wide voltage tolerance. The HC series offers CMOS input levels suitable for modern logic families, unlike the HCT variant which requires TTL levels. Consider the TSSOP package dimensions if board space is constrained, and verify that the propagation delay characteristics meet the timing requirements of the target bus speed.

Part Context

This part belongs to the 74HC3G34-Q100 family of triple buffer gates manufactured by Nexperia. It shares functional similarities with other members of the 74HCxx series but is distinguished by its automotive qualification and extended temperature range. The DP suffix specifically denotes the TSSOP8 plastic thin shrink small outline package, differentiating it from the DC version which uses a VSSOP8 package.

Replacement Considerations

The 74HC3G34DC-Q100H serves as a direct functional replacement if a VSSOP8 package is preferred over the TSSOP8 footprint. Other 74HC3G34 variants without the Q100 suffix may be used if automotive qualification is not required.