Nexperia USA Inc. NXU0304GU12-Q100X

Overview

NXU0304GU12-Q100 from Nexperia is a 4-bit dual-supply voltage level translating buffer with Schmitt-trigger inputs and 3-state outputs, designed for bidirectional asynchronous bus translation between A- and B-side domains (e.g., 1.8 V ↔ 3.3 V or 1.2 V ↔ 5.0 V). It supports unidirectional data flow-three channels A→B and one channel B→A-with independent VCCA (0.9–5.5 V) and VCCB (0.9–5.5 V) supplies, IOFF protection, and AEC-Q100 Grade 1 qualification for automotive infotainment and body control modules.

For engineers reviewing the NXU0304GU12-Q100 datasheet, NXU0304GU12-Q100 pinout, NXU0304GU12-Q100 application, or NXU0304GU12-Q100 equivalent, key selection criteria include dual-rail voltage flexibility, Schmitt-trigger noise immunity on all inputs, OE-referenced-to-either-supply capability, suspend-mode behavior during partial power-down, and XQFN12 package compatibility with space-constrained automotive PCB layouts.

Technical Context

The device implements four independent translation paths: A1–A3 drive YB1–YB3 (A→B), while B4 drives YA4 (B→A). Each input features a 6.5 MΩ internal pull-down resistor and Schmitt-trigger hysteresis (e.g., 0.96 V typical at 5.5 V), enabling robust operation with slow-rising or noisy signals. The OE input is referenced to either VCCA or VCCB via integrated VCC(MIN) circuitry, allowing flexible control domain assignment without external level shifters.

IOFF protection activates when either VCCA or VCCB drops below 100 mV or floats, forcing all outputs into high-impedance state and blocking backflow current. No supply sequencing is required; output glitches are suppressed during power-up/down transitions due to synchronized internal enable logic and rail-independent output drivers.

Key Specifications

Pinout & Package

XQFN12 package (SOT1174-1): 1.70 × 2.0 × 0.50 mm, 12-terminal no-lead construction with side-wettable flanks for AOI-compatible solder joint inspection.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-supply voltage translation applications.

Compared with NXU0304BQ-Q100, the GU12 variant trades thermal headroom for 30 % smaller footprint-critical for ADAS camera modules-while matching all electrical specs. Compared with NXU0104GU12-Q100, the 4-bit version delivers 4× channel density without increasing board area, reducing BOM cost per translated signal.

Availability

NXU0304GU12-Q100 is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS sensor hubs, and electric power steering ECUs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for NXU0304GU12-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 leading semiconductor manufacturer specializing in high-performance logic, discrete, and MOSFET solutions optimized for automotive, industrial, and mobile applications.

The NXU0304-Q100 product line delivers AEC-Q100 qualified dual-supply translators engineered for robust voltage domain bridging in safety-critical automotive subsystems where reliability, noise immunity, and power sequencing independence are mandatory.

FAQ

Can NXU0304GU12-Q100 translate between 1.2 V and 5.0 V simultaneously?

Yes. VCCA may be set to 1.2 V (powering A1–A3 and YA4) while VCCB is set to 5.0 V (powering B4 and YB1–YB3), enabling direct translation without intermediate rails. The device guarantees 250 Mbps data rate for ≥1.8 V → 5.0 V up-translation and maintains Schmitt-trigger thresholds scaled to each supply, ensuring reliable logic interpretation across the full range.

What happens to outputs when VCCA = 0 V and VCCB = 3.3 V?

When VCCA drops below 100 mV while VCCB remains at 3.3 V, the device enters suspend mode: all outputs (YB1–YB3 and YA4) transition to high-impedance state, and IOFF circuitry blocks backflow current from VCCB into the unpowered A-side. Input leakage remains ≤2 μA, preventing unintended bus loading during partial power-down sequences.

Is external pull-up required on OE for reliable power-up behavior?

No. OE has no internal pull-up; however, it can be left floating or externally pulled low to ensure outputs remain in high-impedance state during power-up. The VCC(MIN) circuitry allows OE to be referenced to either VCCA or VCCB, eliminating need for external level shifters. Floating OE is safe because the internal logic defaults to disable until valid voltage is applied.

How does the XQFN12 package's thermal resistance impact continuous operation?

The XQFN12 package has Rth(j-a) = 172 °C/W, limiting continuous power dissipation to 250 mW at +125 °C ambient. At 250 Mbps with 5.0 V supplies, typical ICC is <1 μA per rail, resulting in <1 mW total dissipation - well within thermal limits. Derating begins above 105 °C ambient at 5.6 mW/K, but real-world automotive use cases rarely exceed 10 mW due to low static/dynamic current.