74AVC1T45GM-Q100H

Overview

The Nexperia 74AVC1T45GM-Q100H is a single-bit, dual-supply voltage level translator and transceiver with 3-state outputs. It facilitates bidirectional data translation between two independent power domains, VCC(A) and VCC(B), both operating within a range of 0.8 V to 3.6 V. The device includes a direction control input (DIR) to manage transmission flow between ports A and B. It supports maximum data rates up to 500 Mbit/s depending on the specific voltage translation scenario. The component is housed in an XSON-6 package (SOT886) and is qualified to AEC-Q100 Grade 1 standards for automotive applications.

Feature Summary

• Bidirectional level translation capability between any low-voltage nodes ranging from 0.8 V to 3.6 V
• Integrated IOFF circuitry enables partial power-down mode by disabling outputs to prevent backflow current
• Automotive qualification compliant with AEC-Q100 Grade 1 specifications
• High noise immunity with dynamically controlled outputs and low noise overshoot

Applications

• Unidirectional logic level-shifting between systems operating at different supply voltages
• Bidirectional logic level-shifting requiring direction control via the DIR pin
• Partial power-down applications utilizing IOFF functionality to isolate powered-down sections

Procurement Notes

Verify that the ordering suffix GM corresponds specifically to the SOT886 (XSON6) package variant. Confirm the Q100 designation indicates AEC-Q100 Grade 1 automotive qualification. Ensure the H suffix aligns with RoHS compliance requirements. Cross-reference the manufacturer part number against official Nexperia documentation to validate the specific revision and marking code before procurement.

Selection Notes

Select this component when designing interfaces between mixed-voltage domains where both sides operate below 3.6 V. The presence of a dedicated DIR pin allows explicit control over data direction, which is critical for managing bus contention in bidirectional applications. Consider the XSON6 package constraints regarding thermal dissipation and board space if high-speed operation near temperature limits is anticipated.

Part Context

This device belongs to the 74AVC1T45-Q100 family of dual-supply translators. The GM suffix identifies the specific SOT886 plastic extremely thin small outline package without leads. Other variants in the series include GW (TSSOP6) and GS (SOT1202). All share identical electrical characteristics but differ in physical footprint and thermal properties.

Replacement Considerations

Direct functional substitutes within the same package include the 74AVC1T45GW-Q100H (TSSOP6) and 74AVC1T45GS-Q100H (SOT1202), provided PCB layout adjustments are made for the different package dimensions.