74LVC1T45FW4-7

Translators, Level Shifters Overview

The Diodes Incorporated 74LVC1T45FW4-7 is a single-bit, dual-supply translating transceiver with tri-state outputs. It facilitates voltage translation between domains ranging from 1.65V to 5.5V. The device features an X2-DFN1010-6 package and includes a direction control pin (DIR) referenced to VCCA. It supports partial-power-down mode via IOFF, preventing backflow currents when either supply is zero. The component operates within a temperature range of -40°C to +125°C.

Translators, Level Shifters Feature Summary

• Dual power supply architecture enabling universal low-voltage translation across independent voltage domains.
• Direction control input allows configurable data transmission flow between A and B ports.
• IOFF feature ensures high-impedance isolation during power-down to prevent backflow currents.
• CMOS technology provides low power consumption and high noise immunity with typical hysteresis.

Translators, Level Shifters Applications

• Voltage level translation between logic types operating at different voltages
• Power-down signal isolation for disconnected voltage domains
• Mobile devices including cell phones, tablets, and e-readers
• Computing systems such as PCs, notebooks, and netbooks

Translators, Level Shifters Procurement Notes

Verify the specific ordering suffix FW4 corresponds to the X2-DFN1010-6 package configuration before procurement. Confirm that the required tape and reel quantity aligns with standard factory packaging specifications. Ensure compatibility with surface-mount assembly processes suitable for leadless packages. Validate RoHS compliance requirements against project standards.

Translators, Level Shifters Selection Notes

Select this component for applications requiring bidirectional level shifting between dissimilar voltage rails. The DIR pin must be actively driven or fixed based on the desired data flow direction. Consider the thermal resistance characteristics of the X2-DFN1010-6 package for heat dissipation needs. Ensure unused inputs are tied to appropriate logic levels to maintain stable operation.

Translators, Level Shifters Part Context

This part belongs to the 74LVC family of logic devices, designed for low-voltage CMOS applications. It serves as a direct replacement for various chip-scale packaging options in space-constrained designs. The series supports multiple package variants, allowing flexibility in PCB layout while maintaining consistent electrical performance across the product line.

Translators, Level Shifters Replacement Considerations

Direct replacements include other 74LVC1T45 variants with different package codes such as FX4 (X2-DFN1409-6), FZ4 (X2-DFN1410-6), DW (SOT363), W6 (SOT26), and Z6 (SOT563). Verify pinout compatibility and thermal characteristics when substituting packages.

Translators, Level Shifters FAQ

How does the DIR pin control data flow?

When DIR is high, data flows from Pin A to Pin B. When DIR is low, data flows from Pin B to Pin A.

What is the function of the IOFF feature?

IOFF forces outputs to a high-impedance state if either VCCA or VCCB is at 0V, preventing backflow currents and isolating signals during power-down.