74AVCH1T45GW-Q100H

Overview

The Nexperia 74AVCH1T45GW-Q100H is a single-bit, dual-supply voltage level translator and transceiver housed in a TSSOP6 (SOT363-2) package. It supports bidirectional translation with supply voltages ranging from 0.8 V to 3.6 V on both ports. The device features active bus hold circuitry for floating inputs and IOFF circuitry for partial power-down applications. It achieves maximum data rates of up to 500 Mbit/s depending on the specific voltage translation scenario.

Feature Summary

• Automotive qualification in accordance with AEC-Q100 Grade 1 standards
• IOFF circuitry prevents damaging backflow current during partial power-down
• Active bus hold circuitry maintains valid logic levels on unused or floating data inputs
• Dynamically controlled outputs with suspend mode capability

Applications

• Bidirectional logic level-shifting between systems operating at different voltage domains
• Unidirectional logic level-shifting applications requiring direction control
• Partial power-down mode operation in automotive electronic systems

Procurement Notes

Verify that the ordering suffix matches the required temperature range and package variant. Confirm AEC-Q100 Grade 1 qualification status if automotive compliance is mandatory. Ensure the TSSOP6 package dimensions align with PCB footprint requirements. Check for any recent datasheet revisions that may impact design-in parameters.

Selection Notes

Select this component when a single-channel bidirectional translator with explicit direction control is required. The AVCH family offers high noise immunity and low power dissipation suitable for CMOS applications. Consider the dynamic enable times and propagation delays relative to system timing constraints. Verify that the input voltage ranges cover the target logic levels.

Part Context

This part belongs to the 74AVCH1T45-Q100 series of dual-supply voltage level translators. It is specifically designed for automotive applications meeting AEC-Q100 Grade 1 reliability standards. The device provides a robust solution for interfacing digital components across varying voltage domains while maintaining signal integrity.

Replacement Considerations

The 74AVCH1T45GM-Q100H is a documented substitute part number offering the same functionality in an XSON-6 package.