NXU0204BQ-Q100X

Translators, Level Shifters Overview

The NXU0204BQ-Q100X is a 4-bit dual-supply voltage level translating buffer with Schmitt-trigger inputs and 3-state outputs. It facilitates asynchronous communication between data buses, supporting unidirectional transmission from the A bus to the B bus on three channels and from the B bus to the A bus on one channel. Both VCCA and VCCB operate within a range of 0.9 V to 5.5 V, enabling translation between standard nodes such as 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, and 5.0 V. The device supports maximum data rates up to 250 Mbps for translations between 1.8 V and 5 V.

Translators, Level Shifters Feature Summary

• Features integrated static high ohmic pull-down resistors on Schmitt-trigger inputs to ensure stable states in noisy environments or with slow input signals.
• Includes IOFF circuitry that prevents damaging backflow current during partial power-down modes or when power supplies are disconnected.
• Supports suspend mode operation when either supply voltage drops below 100 mV or becomes floating, automatically entering a high-impedance state.
• Automotive product qualification compliant with AEC-Q100 Grade 1 standards for reliable operation in demanding environments.

Translators, Level Shifters Applications

• General purpose I/O level translation
• Push-pull voltage translation for UART, SPI, and JTAG protocols
• Interfaces requiring noise immunity or handling slow input signals

Translators, Level Shifters Procurement Notes

Verify the specific package suffix matches the required footprint; the BQ suffix indicates DHVQFN-14 (SOT762-1). Confirm the Q100 designation aligns with automotive grade requirements. Ensure the ordering code includes the correct reel or cut tape specifications if applicable. Cross-reference the manufacturer part number against official Nexperia documentation to validate authenticity and revision status before finalizing procurement.

Translators, Level Shifters Selection Notes

Select this component when designing interfaces between mixed-voltage logic families requiring robust signal integrity. The Schmitt-trigger inputs provide necessary hysteresis for noisy environments. Verify that the required data rate does not exceed 250 Mbps for the specific voltage translation scenario. Consider the DHVQFN-14 package dimensions and thermal characteristics for PCB layout constraints.

Translators, Level Shifters Part Context

This device belongs to the NXU0x04 family of voltage level translators from Nexperia. It shares functional similarities with the NXU0104-Q100 and NXU0304-Q100 models but offers a specific 4-bit configuration with asymmetric channel directionality. The Q100 suffix denotes automotive qualification, distinguishing it from standard commercial variants.

Translators, Level Shifters Replacement Considerations

NXU0104-Q100

Translators, Level Shifters FAQ

How does the OE pin function regarding domain reference?

The output enable (OE) pin can be referenced to either the VCCA or VCCB domain using the developed VCC(MIN) circuitry. When set LOW, it disables the outputs into a high-impedance state.

What happens if one of the power supplies is disconnected?

If either VCCA or VCCB drops below 100 mV or becomes disconnected (floating), the device enters suspend mode. All outputs become disabled, and the IOFF circuitry prevents backflow current.