74AVC1T45GM,115

Overview

The Nexperia 74AVC1T45GM,115 is a single-bit dual-supply voltage level translator and transceiver featuring 3-state outputs. It enables bidirectional data translation between ports A and B, with direction controlled by the DIR pin. Both VCC(A) and VCC(B) support voltages from 0.8 V to 3.6 V, allowing compatibility with various low-voltage nodes including 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V. The device operates within an ambient temperature range of -40 °C to +125 °C and is housed in a 6-terminal XSON package (SOT886).

Feature Summary

• Supports bidirectional level translation between any combination of low-voltage nodes ranging from 0.8 V to 3.6 V.
• Includes IOFF circuitry that disables outputs to prevent damaging backflow current during partial power-down applications.
• Features suspend mode operation where both ports enter a high-impedance OFF-state when either supply voltage is at GND level.

Applications

• Bidirectional logic level-shifting between systems operating at different supply voltages
• Unidirectional logic level-shifting for specific data flow requirements
• Partial power-down applications requiring isolation of powered-down sections

Procurement Notes

Verify the ordering suffix matches the required package type, as the 74AVC1T45 family includes multiple variants such as GW, GN, GS, and GX. Confirm the temperature grade corresponds to the application environment, specifically checking for the -40 °C to +125 °C specification. Ensure the selected part number aligns with the desired lead time and availability status provided by the distributor.

Selection Notes

Select this component when designing interfaces between digital subsystems utilizing distinct supply rails within the 0.8 V to 3.6 V range. The device is suitable for applications requiring explicit direction control via the DIR input rather than auto-direction sensing. Consider the XSON6 package dimensions for PCB space constraints and verify that the system design accounts for bus contention precautions in bidirectional configurations due to the lack of a dedicated output enable pin.

Part Context

This component belongs to the 74AVC series of dual-supply voltage translators manufactured by Nexperia. The series provides solutions for interfacing logic families across different voltage domains. The 74AVC1T45 variant specifically offers a single channel with external direction control, distinguishing it from auto-sensing models or multi-channel variants like the 74AVC2T45.

Replacement Considerations

Direct substitutes include other packages within the same family, such as 74AVC1T45GW, 74AVC1T45GN, 74AVC1T45GS, and 74AVC1T45GX, which share identical electrical characteristics but differ in physical footprint.