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Home > Products > Integrated Circuits (ICs) > Logic > Translators, Level Shifters

Nexperia USA Inc. NXB0104BQX

Name: NXB0104BQX
Brand: Nexperia USA Inc.
SKU: NXB0104BQX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: NXB0104BQX

Manufacturer:: Nexperia USA Inc.

Category:: Translators, Level Shifters

Package:

Datasheet:: NXB0104BQX.pdf

Description:: IC TRANSLATOR BIDIR 14DHVQFN

Quantity:: RFQ Add To RFQ list

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Inventory:3,871

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Product details

Overview

NXB0104BQX from Nexperia is a 4-bit dual-supply translating transceiver with auto-direction sensing and 3-state outputs, enabling bidirectional voltage-level translation between 1.2 V–3.6 V (A-side) and 1.65 V–5.5 V (B-side). It features independent VCC(A)/VCC(B) supplies, OE-controlled high-impedance mode, and IOFF circuitry for partial power-down protection. Used in mixed-voltage system interconnects such as 1.8 V microcontroller to 3.3 V peripheral interfaces.

For engineers reviewing the NXB0104BQX datasheet, NXB0104BQX pinout, NXB0104BQX application, or NXB0104BQX equivalent, key selection criteria include asymmetric supply range support (VCC(A): 1.2–3.6 V, VCC(B): 1.65–5.5 V), auto-direction detection without external control signals, guaranteed operation from −40 °C to +125 °C, and DHVQFN14 package thermal performance.

Technical Context

The NXB0104BQX implements edge-triggered one-shot circuitry per I/O channel to dynamically enable PMOS/NMOS drivers during signal transitions-accelerating rise/fall times without requiring direction-control pins. Its architecture maintains weak static output drive to allow bus contention resolution while enabling fast switching via transient boost.

IOFF functionality disables outputs when either VCC(A) or VCC(B) is at GND, preventing backflow current during partial power-down. Input thresholds scale with respective supply rails (VIH = 0.65×VCCI, VIL = 0.35×VCCI), and output drive impedance varies with VCCO: ~70 Ω at 1.2–1.8 V, ~50 Ω at 1.8–3.3 V, ~40 Ω at 3.3–5.0 V.

Key Specifications

Parameter	Value and Actual Design Meaning
VCC(A) Range	1.2 V to 3.6 V - supports low-voltage logic domains including 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V rails
VCC(B) Range	1.65 V to 5.5 V - enables interface to 1.8 V, 2.5 V, 3.3 V, and 5.0 V systems
Propagation Delay (A→B)	Min 0.8 ns / Max 15.9 ns - ensures timing compliance in high-speed digital interconnects up to 100 Mbps
IOFF Leakage Current	±2 μA max at −40 °C to +125 °C - guarantees safe partial power-down without damaging back-current
ESD Robustness (B port)	HBM >15,000 V - protects against handling-induced discharge in industrial and automotive environments
Operating Temperature	−40 °C to +125 °C - qualified for under-hood, motor control, and industrial PLC applications
Output Skew	≤0.5 ns - maintains signal integrity across all four channels in synchronous data transfers

Pinout & Package

DHVQFN14 (SOT762-1) package: 2.5 mm × 3.0 mm × 0.85 mm body, no leads, exposed thermal pad (non-soldered by default), 14 terminals.

Pin/Terminal	Circuit Role	Design Meaning
1	GND	0 V reference for both A- and B-side logic; must be connected to system ground plane
2–5	A1–A4	4-bit bidirectional data port referenced to VCC(A); auto-senses direction on signal edges
6,9	n.c.	No internal connection; floating or grounded per layout requirements (no electrical function)
7	OE	Active-HIGH output enable input referenced to VCC(A); LOW forces all I/Os into high-Z state
8,10–13	B1–B4	4-bit bidirectional data port referenced to VCC(B); electrically isolated from A-side supply domain
11	VCC(B)	Primary supply for B-side I/Os; must be ≥ VCC(A) during normal operation
12	VCC(A)	Supply for A-side I/Os and OE input; sets input threshold and output drive strength on A port
14	Terminal 1 index area	Physical orientation marker; aligns with top-left corner of package outline

Key Features

Feature	Design Value
Auto-direction sensing	Eliminates need for external direction-control signals; detects data flow direction via edge-triggered one-shots on each I/O
Asymmetric dual-supply operation	Independent VCC(A) and VCC(B) rails allow translation between non-matching voltage domains (e.g., 1.8 V ↔ 3.3 V or 1.2 V ↔ 5.0 V)
IOFF partial power-down	Prevents destructive back-current when either supply is off; leakage limited to ±2 μA over full temperature range
High ESD immunity (B port)	HBM >15,000 V ensures robustness in manufacturing, test, and field-replaceable module handling
Thermally enhanced DHVQFN14	0.85 mm profile with exposed pad supports efficient heat dissipation in dense PCB layouts

Applications

Industrial Sensor Interface

Automotive Body Control Module

Use Scenario: Interfacing a 1.8 V automotive sensor ASIC to a 3.3 V CAN controller MCU.

IC Role / Device Role / Timing Role: Bidirectional level translator enabling SPI or parallel data exchange without direction-control lines.

Use Value: Reduces PCB routing complexity and eliminates external direction logic, supporting compact ECU designs with mixed-voltage subsystems.

Use Scenario: Connecting a 2.5 V LIN transceiver to a 5.0 V power management IC in door module electronics.

IC Role / Device Role / Timing Role: Voltage-translating transceiver managing bidirectional status/control signals with automatic direction detection.

Use Value: Enables reliable communication across voltage domains while meeting AEC-Q100 Grade 1 temperature requirements (−40 °C to +125 °C).

Embedded IoT Gateway

Programmable Logic Controller (PLC)

Use Scenario: Bridging a 1.2 V FPGA I/O bank to a 3.3 V Wi-Fi module in battery-powered edge node hardware.

IC Role / Device Role / Timing Role: Low-power dual-rail translator supporting dynamic voltage scaling and partial power-down modes.

Use Value: Maintains signal integrity at 100 Mbps while minimizing quiescent current (<10 nA typical ICC at 1.2 V/1.8 V), extending battery life.

Use Scenario: Isolating 24 V digital I/O expansion cards from a 3.3 V ARM-based main controller in industrial automation racks.

IC Role / Device Role / Timing Role: Robust level shifter handling noise-prone factory floor environments with high ESD immunity and wide operating temperature.

Use Value: Prevents latch-up (exceeds 100 mA per JESD78B Class II) and ensures deterministic behavior during voltage rail sequencing events.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-supply translating transceiver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TXS0104E	Requires external direction-control signal; no auto-sensing; lower VCC(A) min (1.2 V same), but VCC(B) max only 5.5 V (same); lacks IOFF	Suitable for fixed-direction buses; not appropriate where bus arbitration or dynamic direction reversal occurs	Select when direction is static and system already provides DIR signal; avoid where automatic contention resolution is required
NLSX4014MUTAG	Auto-direction sensing enabled; VCC(A): 1.2–3.6 V, VCC(B): 1.65–4.5 V (lower B-side max); no IOFF; smaller X2SON10 package	Limited to ≤4.5 V B-side systems; unsuitable for 5 V legacy peripherals or industrial 5 V I/O	Choose for space-constrained designs interfacing ≤4.5 V domains; reject if 5 V compatibility or partial power-down is mandatory

Compared with TXS0104E and NLSX4014MUTAG, NXB0104BQX uniquely combines auto-direction sensing, full 5.5 V B-side support, and IOFF-enabled partial power-down-making it the only option qualified for mixed-voltage, hot-plug-capable, and thermally demanding industrial applications.

Availability

NXB0104BQX is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, embedded IoT gateways, and programmable logic controller (PLC) backplanes requiring stable component supply across extended temperature ranges.

Supply support for NXB0104BQX includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global semiconductor expert focused on essential efficiency-enhancing components, delivering high-performance logic, discrete, and MOSFET solutions for automotive, industrial, and consumer markets.

The NXB series targets high-reliability bidirectional voltage translation in mixed-supply systems, emphasizing auto-direction sensing, robust ESD protection, and seamless integration into thermally constrained and safety-critical designs.

FAQ

What is the maximum allowable voltage difference between VCC(A) and VCC(B)?

VCC(A) must never exceed VCC(B) during normal operation per datasheet Section 7 and 9. While power-up sequencing allows either rail to ramp first, sustained VCC(A) > VCC(B) risks violating absolute maximum ratings and may cause undefined behavior or accelerated wear. The device is designed for VCC(A) ≤ VCC(B) across its full operating range.

Can NXB0104BQX translate between 1.2 V and 5.0 V simultaneously?

Yes. With VCC(A) = 1.2 V and VCC(B) = 5.0 V, the device supports bidirectional translation between these rails. Inputs on the A side accept up to 5.5 V (Section 8), and B-side outputs swing to VCC(B) − 0.4 V (Section 9), ensuring valid logic levels in both directions under recommended conditions.

Does the DHVQFN14 package require soldering the exposed thermal pad?

No. Per Figure 3 footnote (1), the thermal pad has no electrical or mechanical requirement to be soldered. If connected, it must remain floating or tied to GND-never to VCC(A) or VCC(B). Thermal performance is validated without soldering; optional soldering improves heat transfer but introduces no functional benefit unless board-level thermal constraints demand it.

How does auto-direction sensing handle bus contention during simultaneous drive?

The NXB0104BQX uses weak static output drivers that yield to stronger external drivers. When both sides drive the same line, the side with higher drive strength dominates, and the one-shot circuitry detects the resulting edge to reconfigure direction. This behavior is inherent to its architecture (Section 12.2) and requires no external arbitration logic.

NXB0104BQX Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:

Packaging:: Tape & Reel (TR)

Product Status:: Active

Translator Type:: Voltage Level

Channel Type:: Bidirectional

Number of Circuits:: 1

Channels per Circuit:: 4

Voltage - VCCA:: 1.2 V ~ 3.6 V

Voltage - VCCB:: 1.65 V ~ 5.5 V

Input Signal:: -

Output Signal:: -

Output Type:: Tri-State

Data Rate:: 100Mbps

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Features:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-VFQFN Exposed Pad

NXB0104BQX FAQ

1.How can I place an order for NXB0104BQX through Aetrix?

Please submit a Request for Quotation (RFQ) for NXB0104BQX on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for NXB0104BQX reliable?

The price and inventory of NXB0104BQX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NXB0104BQX is usually 5 days.

3.What payment methods are accepted for NXB0104BQX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NXB0104BQX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for NXB0104BQX?

NXB0104BQX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your NXB0104BQX order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for NXB0104BQX?

For technical support, including NXB0104BQX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NXB0104BQX requirements.

6.How does Aetrix verify that NXB0104BQX is sourced from the original manufacturer or authorized distributors?

All NXB0104BQX products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that NXB0104BQX meets industry standards.

7.What is the process for return or replacement of NXB0104BQX?

All NXB0104BQX units undergo pre-shipment inspection (PSI). If there is an issue with NXB0104BQX, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The NXB0104BQX part is unused and in its original packaging.

Return procedure for NXB0104BQX:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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