Nexperia USA Inc. NXU0204GU12X

Overview

NXU0204GU12X from Nexperia is a 4-bit dual-supply voltage level translating buffer with Schmitt-trigger inputs and 3-state outputs, enabling bidirectional asynchronous bus translation between A-side (VCCA) and B-side (VCCB) domains. It supports independent supply voltages from 0.9 V to 5.5 V per rail, delivers up to 250 Mbps data rate (≥1.8 V → 5 V), features integrated 6.5 MΩ input pull-down resistors, and includes IOFF circuitry for partial power-down protection. It is used in mixed-voltage I/O interfacing between microcontrollers and peripherals in space-constrained industrial controllers.

For engineers reviewing the NXU0204GU12X datasheet, NXU0204GU12X pinout, NXU0204GU12X application, or NXU0204GU12X equivalent, key selection considerations include its dual-rail voltage flexibility (0.9–5.5 V), Schmitt-trigger noise immunity on all inputs, 12 mA output drive at 5 V, suspend-mode behavior during supply loss, and XQFN12 package compatibility with high-density PCB layouts.

Technical Context

The device implements four unidirectional translation channels: A1→YB1, A2→YB2 (A-to-B), and B3→YA3, B4→YA4 (B-to-A), with direction fixed per channel. OE is referenced to either VCCA or VCCB via internal VCC(MIN) logic, enabling domain-agnostic enable control.

Its Schmitt-trigger inputs provide hysteresis (e.g., 0.96 V typical at 5.5 V), rejecting slow edges and noise; static input leakage remains ≤2 μA across –40 °C to +125 °C, and IOFF blocks backflow current when either supply drops below 100 mV or floats.

Key Specifications

Pinout & Package

XQFN12 package (SOT1174-1), 1.70 × 2.0 × 0.50 mm body, 0.4 mm pitch, no leads, exposed thermal pad (non-soldered or floating GND).

Key Features

Applications

Equivalent & Alternatives

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

Compared with NXU0104GU12 and NXU0304GU12, the NXU0204GU12X uniquely balances 4-channel count, 3-state bus isolation, and Schmitt-trigger noise immunity in the smallest XQFN12 footprint - making it optimal for space-constrained, multi-peripheral embedded systems requiring flexible voltage domain bridging.

Availability

NXU0204GU12X is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, and medical diagnostic equipment requiring stable component supply across extended temperature ranges and mixed-voltage designs.

Supply support for NXU0204GU12X 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 discrete, logic, and MOSFET solutions with focus on efficiency, reliability, and miniaturization.

The NXU series targets low-power, high-noise-margin voltage translation in space-constrained applications - designed specifically for seamless interoperability between heterogeneous logic families in industrial, automotive, and medical electronics.

FAQ

Can NXU0204GU12X translate between 1.2 V and 5.0 V simultaneously?

Yes. VCCA may be set to 1.2 V (powering A1/A2/YA3/YA4) and VCCB to 5.0 V (powering B3/B4/YB1/YB2), enabling full 4-bit bidirectional translation. The device is characterized for this configuration, with 250 Mbps supported for ≥1.8 V → 5 V up-translation and 170 Mbps for 5 V → 3.3 V down-translation.

What happens to outputs when VCCA is powered but VCCB is disconnected?

When VCCB drops below 100 mV or floats, the device enters suspend mode: all outputs (YB1, YB2, YA3, YA4) transition to high-impedance OFF-state, and IOFF circuitry blocks back-current flow from VCCA into the unpowered VCCB domain - protecting downstream circuitry.

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

No. OE can be left floating or externally pulled low to GND; internal VCC(MIN) logic ensures OE defaults to inactive (HIGH) only when both VCCA and VCCB exceed 100 mV. Floating OE guarantees Hi-Z outputs during power ramp-up, preventing bus contention.

Does the XQFN12 package require soldering the thermal pad?

No. The exposed pad has no electrical or mechanical requirement to be soldered. If soldered, it must remain electrically floating or connected to GND; improper connection risks thermal or electrical malfunction. Thermal resistance (Rth(j-a) = 172 °C/W) is specified assuming standard JEDEC test board conditions.