74AVC2T45GXX

Overview

The Nexperia 74AVC2T45GXX is a dual-bit, dual-supply voltage level translator and transceiver housed in an X2SON-8 package. It supports bidirectional data translation between two independent power domains, VCC(A) and VCC(B), both ranging from 0.8 V to 3.6 V. The device features a direction control input (DIR) to manage transmission flow. It complies with JEDEC standards for various low-voltage nodes including 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V. Maximum data rates reach 500 Mbit/s for 1.8 V to 3.3 V translations. Propagation delays are specified at 9.2 ns and 11.8 ns under typical conditions.

Feature Summary

• Enables bidirectional level translation between any low-voltage nodes within the 0.8 V to 3.6 V range.
• Includes IOFF circuitry to disable outputs during partial power-down, preventing damaging backflow currents.
• Features a suspend mode that places ports in a high-impedance OFF-state when either supply voltage is at GND level.

Applications

• Interfacing mixed voltage logic systems
• Partial power-down applications requiring isolation
• Bidirectional bus translation between different supply domains

Procurement Notes

Verify the specific ordering suffix 'GXX' corresponds to the X2SON-8 package variant as defined in the manufacturer's ordering information table. Confirm the temperature range specification matches the design requirements, noting that this specific package version may have distinct thermal or operational limits compared to other variants in the 74AVC2T45 family. Ensure compatibility with the required JEDEC standard compliance levels for the target application voltage nodes.

Selection Notes

Select this component when designing circuits requiring translation between widely varying low-voltage supplies, such as 0.8 V to 3.3 V. The dual-supply architecture allows independent power management for each port. Consider the propagation delay characteristics relative to the system clock speed. The absence of an output enable pin necessitates careful direction control management to avoid bus contention in bidirectional applications.

Part Context

This device belongs to the Nexperia AVC logic family, which utilizes Advanced Very-low-voltage CMOS technology. It is part of a broader portfolio of bi-directional level shifters and translators designed for PCB miniaturization and signal integrity improvement in complex layouts. The AVC series is optimized for low power consumption and high noise immunity in modern low-voltage digital systems.

Replacement Considerations

Publicly confirmed substitute part numbers for the 74AVC2T45GXX are not available in the provided source material. Other packages within the same logical family, such as 74AVC2T45DC or 74AVC2T45DP, offer identical electrical functionality but differ in physical footprint and thermal performance.