74AVC1T45FW3-7

Overview

The Diodes Incorporated 74AVC1T45FW3-7 is a single-bit dual power supply translating transceiver with tri-state outputs. It facilitates logic level translation between voltage domains ranging from 1.2V to 3.6V. The device features an X2-DFN0910-6 package and operates within a temperature range of -40°C to +85°C. Key electrical parameters include a propagation delay of 2.8 ns, a maximum operating supply voltage of 3.6 V, and a minimum of 1.2 V. It draws a working supply current of 20 uA and provides 3-State output capability.

Feature Summary

• Supports universal low-voltage translation across any voltages from 1.2V to 3.6V for both A and B pins.
• Includes IOFF feature that maintains high-impedance state during partial-power-down mode to prevent backflow currents.
• Direction pin controls data flow direction relative to VCCA, allowing reversible signal transmission.

Applications

• Voltage level translation between logic types operating at different voltages
• Power down signal isolation to prevent loading on signal lines when a domain is off
• Portable electronics such as cell phones, tablets, and e-readers

Procurement Notes

Verify the specific ordering suffix FW3 corresponds to the X2-DFN0910-6 package configuration required for your design. Confirm compliance with RoHS directives and halogen-free status if environmental regulations apply to your manufacturing process. Ensure the tape and reel packaging quantity matches your assembly line requirements.

Selection Notes

Select this component when bidirectional translation between two distinct voltage domains is necessary within the 1.2V to 3.6V range. The inclusion of a dedicated direction control pin allows for flexible data flow management. Consider the X2-DFN0910-6 package dimensions against available PCB real estate constraints.

Part Context

This part belongs to the 74AVC1T45 series of single-bit translators manufactured by Diodes Incorporated. It is designed for applications requiring robust signal integrity across varying power supplies. The AVC family specifically targets low-voltage digital systems needing reliable interface solutions.

Replacement Considerations

The datasheet identifies SOT26 (W6), SOT363 (DW), X1-DFN1010-6 (FW5), X2-DFN1410-6 (FZ4), and X2-DFN1409-6 (FX4) as alternative package options within the same functional family. Verify pinout compatibility before substituting.

FAQ

How does the device handle power-down conditions?

The IOFF feature ensures outputs remain in a high-impedance state when either VCCA or VCCB is at 0V, preventing damaging backflow currents and providing electrical isolation up to 3.6V.

What determines the direction of data transfer?

The DIR pin controls the direction. A high logic level makes Pin A the input and Pin B the output, while a low level reverses these roles.