Nexperia USA Inc. NEVB-NXU0204UL

Overview

NEVB-NXU0204UL from Nexperia is a two-layer evaluation board designed for the NXU0204 4-bit dual-supply voltage level shifter in DHXQFN14 (SOT8014-1) package. It implements Schmitt-trigger inputs with 6.5 MΩ pull-downs, OE control selectable between VCCA and VCCB, and supports 0.9 V to 5.5 V operation on both rails. The board enables validation of high-speed bidirectional level translation up to 250 Mbps in mixed-voltage I²C, GPIO, and UART interconnects.

For engineers reviewing the NEVB-NXU0204UL datasheet, NEVB-NXU0204UL pinout, NEVB-NXU0204UL application, or NEVB-NXU0204UL equivalent, this board provides verified signal integrity testing, configurable loading for rise/fall time analysis, OE domain selection, and suspend-mode behavior validation under partial power loss - critical for embedded system bring-up and voltage-domain interface design.

Technical Context

The NEVB-NXU0204UL replicates real-world system integration of the NXU0204 IC by incorporating series resistors and parallel capacitive loads on all eight data lines (A0–A3, B0–B3), enabling propagation delay and edge-rate characterization. Each input includes an integrated Schmitt trigger and 6.5 MΩ pull-down resistor to ensure noise immunity and floating-input robustness.

Output enable (OE) is routed to a 3-pin header allowing jumper-based connection to either VCCA or VCCB via 10 kΩ pull-up resistors; internal VCC(min) circuitry ensures OE logic threshold tracks the lower supply. The board enters suspend mode when either supply drops below 100 mV or disconnects.

Key Specifications

Availability

NEVB-NXU0204UL is available at Aetrix Electronics and suitable for embedded system bring-up, mixed-voltage interface validation, and high-speed digital protocol interoperability testing requiring stable component supply and traceable evaluation hardware.

Supply support for NEVB-NXU0204UL 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 for automotive, industrial, and consumer applications.

The NXU evaluation board series supports Nexperia's NXU-family of dual-supply level shifters, engineered specifically for robust bidirectional voltage translation across heterogeneous logic domains in space-constrained, low-power systems.

FAQ

What voltage ranges can be tested using the NEVB-NXU0204UL?

The board supports independent VCCA and VCCB supplies from 0.9 V to 5.5 V each, enabling validation of level translation between common logic families including 1.2 V, 1.8 V, 2.5 V, 3.3 V, and 5 V domains. Power is applied via labeled 2-pin headers J3 (VCCA/GND) and J4 (VCCB/GND), with silkscreen marking for polarity and rail identification.

How is output enable (OE) configured on this evaluation board?

OE is controlled via a 3-pin header (J5) where the center pin connects to the NXU0204 OE input and outer pins connect through 10 kΩ resistors to VCCA and VCCB. A jumper selects pull-up to either rail. Internal VCC(min) circuitry ensures OE logic threshold follows the lower active supply, preventing misoperation during asymmetric power sequencing.

Can the NEVB-NXU0204UL be used to characterize signal integrity parameters?

Yes - each of the eight data lines (A0–A3, B0–B3) includes a 0 Ω series resistor and dedicated capacitor-to-ground footprint (C1–C8), allowing configurable RC loading. This enables measurement of propagation delay, rise/fall time, overshoot (<10% of VCCO), and undershoot under varying load conditions without solder modification.

Is the NEVB-NXU0204UL compatible with other NXU devices?

The board is optimized for the NXU0204 but shares identical layout and footprint compatibility with NXU0104 and NXU0304 variants. All three use the same DHXQFN14 package and pinout; only device-specific electrical characteristics (e.g., drive strength, timing) differ. The BOM and schematic are functionally identical across the NEVB-NXU0x04UL series.