Nexperia USA Inc. NXU0104BQ-Q100X

Overview

NXU0104BQ-Q100 from Nexperia is a 4-bit unidirectional dual-supply voltage level translating buffer with Schmitt-trigger inputs, 3-state outputs, AEC-Q100 Grade 1 qualification, and DHVQFN14 package. It translates data from A-side (VCCA) to B-side (VCCB) across independent 0.9 V–5.5 V supply domains, supports up to 250 Mbps translation (≥1.8 V → ≥4.5 V), features integrated 6.5 MΩ input pull-down resistors, and enables bus isolation via active-HIGH OE referenced to either supply domain. It is used in automotive infotainment I/O bridging between 1.8 V microcontrollers and 3.3 V sensor interfaces.

For engineers reviewing the NXU0104BQ-Q100 datasheet, NXU0104BQ-Q100 pinout, NXU0104BQ-Q100 application, or NXU0104BQ-Q100 equivalent, this page delivers verified technical context, validated pin functions, real-world automotive use cases, confirmed alternatives with documented functional differences, and supply-chain support for volume deployment in AEC-Q100-compliant systems.

Technical Context

The device implements asynchronous unidirectional level translation using separate VCCA (input-side) and VCCB (output-side) supplies, each independently configurable from 0.9 V to 5.5 V. Its Schmitt-trigger inputs provide 0.25–1.18 V hysteresis (depending on supply) and tolerate slow/noisy signals without oscillation.

Output enable (OE) is referenced to VCCA or VCCB via internal VCC(MIN) circuitry; asserting OE LOW places all YBn outputs in high-impedance state. IOFF protection ensures <±2 µA off-state leakage when either supply drops below 100 mV or floats, eliminating backflow current during partial power-down.

Key Specifications

Pinout & Package

DHVQFN14 package (SOT762-1), 2.5 × 3.0 × 0.85 mm body, side-wettable flanks for AOI-compatible solder joint inspection.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar voltage level translation applications.

Compared with NXU0204BQ-Q100, NXU0104BQ-Q100 provides double the channel count for consolidated I/O bridging; compared with NXU0304BQ-Q100, it trades bidirectionality for lower propagation delay (38.5 ns vs. 42 ns typical) and simpler OE-only control - ideal for dedicated A→B paths in safety-critical automotive modules.

Availability

NXU0104BQ-Q100 is available at Aetrix Electronics and suitable for automotive infotainment, ADAS sensor interfacing, body control module isolation, and gateway UART level translation requiring stable component supply, AEC-Q100 compliance, and DHVQFN packaging with AOI support.

Supply support for NXU0104BQ-Q100 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 delivering high-performance, high-reliability logic, discrete, and MOSFET solutions with focus on automotive, industrial, and mobile markets.

The NXU0104-Q100 product line targets automotive-grade voltage translation in space-constrained ECUs, emphasizing IOFF protection, wide supply flexibility, and Schmitt-noise immunity for robust operation in electrically noisy vehicle environments.

FAQ

Can NXU0104BQ-Q100 translate signals from a higher voltage domain to a lower one (e.g., 5.0 V → 1.8 V)?

Yes - it supports down-translation (e.g., 5.0 V A-side to 1.8 V B-side) at up to 150 Mbps. Input VI rating extends to 5.5 V regardless of VCCA, so 5.0 V signals are safe even when VCCA = 1.8 V. Output swing is rail-to-rail relative to VCCB, ensuring clean 1.8 V logic levels at YBn.

Is OE required to be driven, or can it be left floating?

OE may be left floating or externally pulled LOW to ensure high-impedance outputs during power-up/down. Internal circuitry interprets floating OE as logic LOW due to weak internal pull-down, guaranteeing bus isolation before supplies stabilize - no external resistor needed.

Does NXU0104BQ-Q100 support bidirectional data flow?

No - it is strictly unidirectional (A→B only). The NXU0304-Q100 variant adds a DIR pin for bidirectional operation. NXU0104's fixed direction simplifies timing analysis and eliminates direction-control timing constraints in A→B-only systems like sensor-to-MCU links.

What is the impact of using different VCCA and VCCB voltages on propagation delay?

Propagation delay varies with both supplies: tpd ranges from 38.5 ns (VCCA = VCCB = 2.5–3.3 V) to 61 ns (VCCA = VCCB = 0.9 V). Delay is minimized when both supplies are ≥2.5 V; for 1.2 V/3.3 V translation, typical tpd is 44 ns - verified in Table 13 and Table 14.