Nexperia USA Inc. NXU0304PWJ

Overview

NXU0304PWJ 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 0.9 V–5.5 V domains. It supports fixed-direction data flow (A→B on three channels, B→A on one channel), features independent VCCA/VCCB supplies, integrated 6.5 MΩ input pull-downs, and IOFF circuitry enabling partial power-down operation in mixed-voltage systems such as industrial I/O controllers.

For engineers reviewing the NXU0304PWJ datasheet, NXU0304PWJ pinout, NXU0304PWJ application, or NXU0304PWJ equivalent, this device is selected for robust level translation in noisy environments, low-power embedded interfaces, and applications requiring glitch-free power sequencing across disparate supply rails (e.g., 1.8 V MCU to 3.3 V peripheral).

Technical Context

The NXU0304PWJ implements four independent translation paths with asymmetric directionality: A1–A3 drive YB1–YB3 (A→B), while B4 drives YA4 (B→A). Its Schmitt-trigger inputs provide 0.25–1.18 V hysteresis (depending on supply) to reject slow/noisy signals, and the OE pin operates referenced to either VCCA or VCCB via internal VCC(MIN) logic.

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 power-supply sequencing is required, and output glitches are suppressed during power-up/down transitions due to synchronized suspend-mode entry.

Key Specifications

Pinout & Package

TSSOP14 package (SOT402-1), 14-lead plastic thin shrink small outline, 4.4 mm body width, 0.65 mm pitch. Pin 1 index located at lower-left corner below marking code.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NXU0104PW and NXU0204PW, the NXU0304PWJ offers unique asymmetric channel allocation (3× A→B + 1× B→A), lowest propagation delay (26.5 ns min), and highest data rate (250 Mbps), making it optimal for mixed-direction embedded interfaces where timing and channel specialization matter.

Availability

NXU0304PWJ is available at Aetrix Electronics and suitable for industrial I/O expansion, low-power sensor interface, and embedded debug port isolation requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for NXU0304PWJ 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, analog, and discrete components, with global R&D and manufacturing facilities focused on reliability and energy efficiency.

The NXU0304 belongs to Nexperia's dual-supply level translation product line, engineered specifically for robust, low-power, mixed-voltage system interfacing in industrial automation, IoT edge devices, and embedded computing platforms.

FAQ

Can NXU0304PWJ translate between 0.9 V and 5.5 V simultaneously?

Yes. VCCA and VCCB can be independently set from 0.9 V to 5.5 V, enabling direct translation between these extremes - for example, a 0.9 V ASIC core communicating with a 5.5 V industrial actuator driver. The device guarantees specified timing and drive strength across the full range, validated per JEDEC standards JESD8-12 and JESD12-6.

What happens if OE is left unconnected during power-up?

The OE pin has no internal pull-up; however, its VCC(MIN) circuitry allows safe floating. When OE is floating or pulled LOW, all outputs enter high-impedance state - preventing bus contention during power sequencing. This behavior is explicitly characterized in the datasheet's suspend-mode section and requires no external components.

Does NXU0304PWJ support hot-swap between powered and unpowered domains?

Yes. The IOFF circuitry activates when either VCCA or VCCB drops below 100 mV or floats, disabling outputs and limiting backflow current to <±2 µA. This protects live circuits during hot-insertion of daughterboards or modular peripherals, satisfying IEC 61000-4-2 Level 4 ESD and partial-power-down requirements.

How does the Schmitt-trigger input improve noise immunity compared to standard CMOS inputs?

The NXU0304PWJ's Schmitt inputs provide 0.25–1.18 V hysteresis (depending on supply), meaning the rising and falling thresholds differ significantly - e.g., VT+ = 0.89 V and VT− = 0.50 V at 1.4 V supply. This prevents oscillation on slow-rising edges and rejects noise spikes narrower than the hysteresis window, unlike standard CMOS inputs with near-zero hysteresis.