74AVC1T45W6-7

Overview

The 74AVC1T45W6-7 is a single-bit dual power supply translating transceiver with 3-state outputs manufactured by Diodes Incorporated. It facilitates voltage level translation between logic domains operating at different voltages, supporting VCCA and VCCB ranges from 1.2V to 3.6V. The device features a direction control pin (DIR) referenced to VCCA that determines data flow between pins A and B. It includes IOFF functionality for partial-power-down mode isolation and high noise immunity with typical hysteresis. Packaged in SOT26-6, it operates within an ambient temperature range of -40°C to +85°C.

Feature Summary

• Dual independent power supplies allow universal low-voltage translation across any combination of voltages from 1.2V to 3.6V.
• Direction control pin manages signal flow between input and output ports while maintaining tri-state outputs during power-down conditions.
• IOFF feature ensures electrical isolation when either power supply is zero, preventing backflow currents.

Applications

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

Procurement Notes

Verify the specific package type matches the design requirements, as this component is available in multiple packages including SOT26, SOT363, and various DFN formats. Confirm the ordering suffix corresponds to the desired tape and reel quantity. Ensure compatibility with the target voltage domains before finalizing procurement decisions.

Selection Notes

Select this component when interfacing circuits requiring bidirectional translation between 1.2V and 3.6V logic levels. Consider the SOT26 package for space-constrained designs where direct replacement for chip-scale packaging is needed. Evaluate the need for partial-power-down isolation capabilities inherent to the IOFF feature when designing systems with multiple power rails.

Part Context

This part belongs to the 74AVC1T45 family of single-bit translators designed by Diodes Incorporated. The W6 suffix specifically denotes the SOT26 package configuration. The series is engineered for applications requiring robust voltage translation with minimal footprint and high noise immunity characteristics suitable for modern portable electronic devices.

Replacement Considerations

The datasheet identifies X2-DFN1409-6 and X2-DFN1410-6 packages as designed for direct replacement of chip-scale packaging alternatives. Verify pinout compatibility and thermal resistance differences when substituting with other package variants within the same logical family.