74LVC2G126DC-Q100H

Overview

The Nexperia 74LVC2G126DC-Q100H is a dual buffer and line driver featuring three-state outputs controlled by active-high output enable inputs (nOE). It operates within a supply voltage range of 1.65 V to 5.5 V and accepts overvoltage tolerant inputs up to 5.5 V, facilitating translation between mixed 3.3 V and 5 V logic environments. The device incorporates Schmitt-trigger action on all inputs for improved noise immunity and slow signal transition tolerance. It includes IOFF circuitry to prevent damaging backflow currents during partial power-down states. Qualified to AEC-Q100 Grade 1 standards, it supports automotive applications across temperature ranges of -40 °C to +85 °C and -40 °C to +125 °C.

Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 standards
• IOFF circuitry enables safe partial power-down mode operation
• Schmitt-trigger inputs provide high noise immunity and tolerance for slow rise/fall times
• Overvoltage tolerant inputs allow direct interfacing with 5 V devices

Applications

• Mixed voltage bus buffering in automotive systems
• Line driving for data transmission lines
• Partial power-down applications requiring backflow current prevention

Procurement Notes

Verify the specific suffix DC corresponds to the VSSOP8 package (SOT765-1) when ordering. Confirm that the Q100 designation ensures compliance with AEC-Q100 Grade 1 reliability requirements for your target environment. Check the most recent datasheet revision for any updates to marking codes or electrical characteristics before finalizing design specifications.

Selection Notes

Select this component when a dual buffer with three-state control is required for low-voltage CMOS logic. The wide supply voltage range accommodates both 1.8 V and 5 V systems. Ensure the application benefits from the included IOFF protection if the system undergoes partial power cycling. Verify that the VSSOP8 package dimensions fit the available PCB space constraints.

Part Context

This part belongs to the Nexperia 74LVC2G126-Q100 family of dual bus buffers. The 'DC' suffix specifically identifies the VSSOP8 plastic very thin shrink small outline package variant. Other variants in the series include the DP suffix for TSSOP8 packages. All share identical electrical performance and functional descriptions.

Replacement Considerations

Direct pin-compatible replacements within the same family include the 74LVC2G126DP-Q100H, which utilizes a TSSOP8 package instead of VSSOP8. Ensure the alternative package fits the mechanical footprint requirements of the existing design.