Nexperia USA Inc. NXS0104GU12-Q100X

Overview

NXS0104GU12-Q100 from Nexperia is an automotive-grade, 4-bit dual-supply bidirectional voltage-level translating transceiver with auto-direction sensing and open-drain I/O architecture. It enables seamless interface between 1.8 V/2.5 V/3.3 V and 5.0 V domains (VCC(A): 1.65–3.6 V; VCC(B): 2.3–5.5 V), supports up to 24 Mbps data rate in push-pull mode, and features IOFF circuitry for partial power-down protection. It is used in automotive infotainment and body control modules requiring robust level translation across mixed-voltage I²C or 1-wire buses.

For engineers reviewing the NXS0104GU12-Q100 datasheet, NXS0104GU12-Q100 pinout, NXS0104GU12-Q100 application, or NXS0104GU12-Q100 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification, auto-direction capability eliminating external control logic, guaranteed operation from –40 °C to +125 °C, integrated 10 kΩ pull-ups per port, and XQFN12 package with 1.70 × 2.0 × 0.50 mm footprint for space-constrained PCB layouts.

Technical Context

The NXS0104GU12-Q100 implements a switch-type voltage translation architecture using pass-gate NMOS transistors and edge-accelerating one-shot circuits per channel. Its auto-direction sensing relies on internal biasing that sets the gate of T3 ~1 V_TH above the lower supply rail, enabling automatic bidirectional conduction without direction-control pins.

Each I/O pair includes dedicated 10 kΩ internal pull-up resistors referenced to its respective supply (VCC(A) for A-side, VCC(B) for B-side), and the OE input-referenced to VCC(A)-controls high-impedance disable state. The IOFF circuit ensures leakage current remains ≤ ±12 μA when either supply is at GND, preventing backflow during partial power-down.

Key Specifications

Pinout & Package

XQFN12 package (SOT1174-1): 1.70 × 2.0 × 0.50 mm, no leads, side-wettable flanks for AOI-compatible solder joint inspection. Exposed thermal pad (not electrically connected) improves thermal dissipation in compact automotive modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NXS0104BQ-Q100, the GU12 variant trades thermal headroom for 30% smaller footprint and lower parasitic capacitance-ideal for camera and sensor hubs. Versus NXB0104GU12-Q100, it eliminates direction-control logic but sacrifices peak drive current, making it optimal for I²C/1-wire-not SPI-applications.

Availability

NXS0104GU12-Q100 is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS camera modules, and body control units requiring stable component supply with AEC-Q100 compliance and long-term lifecycle support.

Supply support for NXS0104GU12-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, reliable components for automotive, industrial, and consumer markets, with leadership in logic, discrete, and MOSFET technologies.

The NXS0104-Q100 product line delivers automotive-qualified bidirectional level translation for mixed-voltage digital interfaces-designed specifically to replace discrete MOSFET solutions in I²C, SMBus, and 1-wire systems.

FAQ

What is the minimum required pull-up resistance when using external resistors with NXS0104GU12-Q100?

The internal 10 kΩ pull-ups can be paralleled with external resistors to achieve lower effective values. For reliable HIGH-level detection at VCC(A) = 1.65 V, the combined pull-up must ensure VIH ≥ 0.65 × VCC(A) under worst-case sink current (e.g., 3 mA). A 4.7 kΩ external resistor yields ~3.2 kΩ total, meeting this requirement while limiting VOL to ≤0.4 V at 1 mA load.

Can NXS0104GU12-Q100 translate between 1.2 V and 3.3 V domains?

No. VCC(A) must be ≥1.65 V per datasheet limits, so 1.2 V is outside specification. Attempting operation below 1.65 V risks unreliable auto-direction sensing, increased propagation delay variation, and potential failure to meet AEC-Q100 timing margins. Use NXP's NX3P series for sub-1.65 V translation.

How does the one-shot circuit affect maximum capacitive load on B-side outputs?

The one-shot pulse duration (~50 ns) limits the maximum lumped load capacitance. With typical 50 Ω effective drive impedance during acceleration, the RC time constant must stay ≤50 ns to reach VOH within the pulse window. For VCC(B) = 5.0 V, this restricts CL to ≤100 pF-including PCB trace, connector, and receiver input capacitance-to avoid incomplete rising edges and re-triggering.

Is OE pin compatible with 1.8 V logic when VCC(A) = 1.8 V?

Yes. OE is referenced to VCC(A), so its VIH threshold is 0.65 × VCC(A) = 1.17 V and VIL is ≤0.35 × VCC(A) = 0.63 V. A standard 1.8 V CMOS driver (VOH ≥ 1.62 V, VOL ≤ 0.18 V) fully satisfies these levels, ensuring reliable enable/disable control without level-shifting circuitry.