74AXP1T45GWH

Overview

The Nexperia 74AXP1T45GWH is a single-bit, dual-supply translating transceiver with 3-state outputs. It enables bidirectional level translation between ports A and B using a direction control input (DIR). Both VCC(A) and VCC(B) operate within a range of 0.9 V to 5.5 V, supporting various low-voltage nodes without power supply sequencing requirements. The device features patented circuitry to prevent output glitches during power transitions. It includes IOFF circuitry for partial power-down applications, preventing backflow current when powered down.

Feature Summary

• Bidirectional level translation between two independent voltage domains
• Glitch-free operation during power supply transitions
• IOFF circuitry prevents damaging backflow current in partial power-down mode
• High noise immunity with low input and output capacitance

Applications

• Partial power-down applications requiring isolation
• Bidirectional logic level-shifting between different voltage systems
• Unidirectional logic level-shifting applications

Procurement Notes

Verify the specific package marking code R5 corresponds to the TSSOP6 (SOT363-2) variant. Confirm that the ordering suffix 'GW' indicates the plastic thin shrink small outline package with 6 leads. Ensure compatibility with the required operating temperature range of -40 °C to +125 °C for the intended application environment.

Selection Notes

Select this component when interfacing between systems operating at different voltage levels ranging from 0.9 V to 5.5 V. It is suitable for designs requiring bidirectional data transfer with explicit direction control. Consider the low static power consumption and high noise immunity for sensitive analog or mixed-signal environments. Verify that the 3-state output characteristics meet the bus contention requirements of the target system.

Part Context

The 74AXP1T45 belongs to the AXP family of Si-Gate CMOS devices designed for advanced low-voltage applications. This series emphasizes low power consumption and high performance across wide supply voltage ranges. The GWH suffix specifically denotes the TSSOP6 package version, distinguishing it from leadless X2SON variants within the same functional family.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.