74AXP1T45GXZ

Overview

The Nexperia 74AXP1T45GXZ is a single-bit, dual-supply translating transceiver with three-state outputs. It features two 1-bit input-output ports (A and B), a direction control input (DIR), and dual supply pins VCC(A) and VCC(B). Both supplies operate between 0.9 V and 5.5 V, enabling translation between low voltage nodes including 0.9 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, and 5.0 V. The device operates from -40 °C to +125 °C and utilizes IOFF circuitry for partial power-down applications.

Feature Summary

• Bidirectional level translation capability without requiring power supply sequencing
• Patented circuitry prevents output glitches during power supply transitions
• IOFF circuitry disables outputs to prevent damaging backflow current in partial power-down modes
• High noise immunity with low overshoot and undershoot characteristics

Applications

• Unidirectional logic level-shifting between different voltage domains
• Bidirectional logic level-shifting for mixed-voltage system interconnects
• Partial power-down mode operation in portable electronic devices

Procurement Notes

Verify the specific package variant required, as the GX suffix denotes the X2SON6 package. Confirm that the design accommodates the absence of an explicit output enable pin by managing bus contention during direction changes. Ensure supply voltages remain within the 0.9 V to 5.5 V range for both VCC(A) and VCC(B) to maintain specified performance levels.

Selection Notes

Select this component when bidirectional translation between widely varying voltage levels is necessary without sequencing constraints. The device is suitable for designs requiring glitch-free transitions during power-up or power-down phases. Consider the X2SON6 package for space-constrained applications where thermal performance and footprint are critical factors.

Part Context

This device belongs to the AXP family of Si-gate CMOS devices manufactured by Nexperia. It serves as a specialized interface solution for connecting digital systems operating at different supply voltages. The 74AXP1T45 series provides robust signal integrity and low power consumption compared to standard logic families.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.