NLSX4378BFCT1G

Translators, Level Shifters Overview

The NLSX4378BFCT1G is a 4-bit dual-supply level translator manufactured by onsemi. It supports bidirectional auto-sensing translation between VCC and VL rails, both configurable from 1.65 V to 5.5 V. The device guarantees a maximum data rate of 24 Mb/s in rail-to-rail configurations and features integrated 10 kΩ pullup resistors. It operates within an ambient temperature range of -40°C to +85°C and utilizes a Bump12 package measuring 2.02 x 1.54 mm.

Translators, Level Shifters Feature Summary

• Auto-sensing bidirectional voltage translation without directional control pins
• Nonpreferential power-up sequencing for independent supply rails
• Overvoltage tolerant I/O lines up to 5.5 V
• Integrated 10 kΩ pullup resistors optimized for open-drain applications

Translators, Level Shifters Applications

• I2C communication bus level shifting
• SMBus and PMBus interface translation
• Low voltage ASIC level translation
• Mobile phones, PDAs, and cameras

Translators, Level Shifters Procurement Notes

Verify the BF suffix indicates backside laminate coating when sourcing this specific variant. Confirm the CT1G designation corresponds to tape and reel packaging containing 3000 units per reel. Ensure compatibility with Pb-free manufacturing standards required for your assembly process.

Translators, Level Shifters Selection Notes

Select this component when interfacing circuits with different logic voltage levels requiring bidirectional data flow. The absence of a direction pin simplifies PCB layout compared to controlled translators. Verify that the application does not exceed the 5.5 V overvoltage tolerance limits on any input or output line.

Translators, Level Shifters Part Context

This part belongs to the NLSX4378 family of dual-supply level translators. The BFCT1G suffix specifies the backside coated variant packaged in a Bump12 form factor. It serves as a direct replacement for standard NLSX4378FCT1G devices where thermal or mechanical backing requirements differ.

Translators, Level Shifters Replacement Considerations

NLSX4378FCT1G is a confirmed substitute part number differing only in the presence of backside laminate coating.

Translators, Level Shifters FAQ

Does the NLSX4378 require a directional control pin?

No, the device uses auto-sensing technology to determine data flow direction automatically.

What is the maximum operating voltage for the I/O lines?

The I/O lines are overvoltage tolerant (OVT) up to 5.5 V.