74AVC2T45GS-Q100X

Overview

The Nexperia 74AVC2T45GS-Q100X is a dual-bit, dual-supply voltage level translator and transceiver featuring three-state outputs. It supports bidirectional translation between any low-voltage nodes ranging from 0.8 V to 3.6 V on both ports A and B. The device includes a direction control input (DIR) to manage data flow between the nA and nB ports. It is qualified to AEC-Q100 Grade 1 standards for automotive applications and operates within an ambient temperature range of -40 °C to +125 °C.

Feature Summary

• Bidirectional level translation capability between independent supply domains
• IOFF circuitry enables partial power-down mode to prevent backflow current
• High noise immunity with low overshoot and undershoot characteristics
• Robust ESD protection exceeding 8000 V HBM and 1000 V CDM

Applications

• Automotive electronic systems requiring mixed-voltage interfacing
• Partial power-down applications in battery-powered devices
• Interfacing logic circuits operating at different voltage levels
• Bus transceivers in automotive body control modules

Procurement Notes

Verify the specific package variant GS (SOT1203) matches the design footprint. Confirm AEC-Q100 Grade 1 qualification requirements are met for the target automotive application. Check the latest datasheet revision for any updates to dynamic characteristics or thermal derating curves before finalizing the bill of materials.

Selection Notes

Select this component when bidirectional translation between two independent voltage domains is required without auto-direction sensing. Ensure the system can handle the DIR pin control timing to avoid bus contention during direction switches. Verify that the maximum data rate requirements align with the specific voltage translation pairs used in the design.

Part Context

This part belongs to the 74AVC2T45-Q100 family of dual-supply translators. The GS suffix denotes the XSON8 package (SOT1203), which offers a compact form factor suitable for space-constrained PCB layouts. It shares functional compatibility with other variants in the series differing only in package type and thermal performance.

Replacement Considerations

Direct replacements must maintain the XSON8 package and AEC-Q100 qualification. Verify pinout compatibility and electrical specifications against the original datasheet before substitution.