Nexperia USA Inc. NXU0104PWJ

Overview

NXU0104PWJ from Nexperia is a 4-bit unidirectional dual-supply voltage level translating buffer with Schmitt-trigger inputs, 3-state outputs, and IOFF partial power-down protection. It translates signals from A-side (VCCA = 0.9–5.5 V) to B-side (VCCB = 0.9–5.5 V), supports 250 Mbps data rates at ≥1.8 V translation, features integrated 6.5 MΩ input pull-down resistors, and enables bus isolation via OE pin referenced to either supply domain. Used in UART/SPI/JTAG I/O bridging between mixed-voltage SoC subsystems.

For engineers reviewing the NXU0104PWJ datasheet, NXU0104PWJ pinout, NXU0104PWJ application, or NXU0104PWJ equivalent, this page delivers verified specifications including Schmitt-trigger thresholds (VT+ = 0.71 V typ @ 1.1 V), output skew ≤0.7 ns, IOFF leakage <2 µA, and TSSOP14 package mechanical details - all validated against Nexperia's Rev. 2 (Dec 2024) product data sheet.

Technical Context

The NXU0104PWJ implements asynchronous unidirectional level translation using independent A- and B-side supply domains with no power sequencing requirement. Its Schmitt-trigger inputs provide noise immunity for slow-rising signals, with VT+ and VT− thresholds scaling proportionally across 0.9–5.5 V supplies (e.g., VT+ = 0.71 V / VT− = 0.40 V @ 1.1 V).

IOFF circuitry actively blocks backflow current when either VCCA or VCCB drops below 100 mV or floats, ensuring safe partial power-down operation. The OE pin supports direct connection to VCCA or VCCB, enabling high-impedance output state during power-up/down without external biasing.

Key Specifications

Pinout & Package

TSSOP14 (SOT402-1) package: 14-lead plastic thin shrink small outline, 4.4 mm body width, 0.65 mm pitch, exposed pad not required.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar voltage level translation applications.

Compared with NXU0204PWJ and NXU0304PWJ, the NXU0104PWJ delivers superior noise immunity via Schmitt-trigger inputs and lowest propagation delay - making it optimal for high-reliability, high-speed unidirectional I/O bridging where signal integrity is prioritized over bidirectional flexibility.

Availability

NXU0104PWJ is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, consumer IoT hubs, and medical diagnostic equipment requiring stable component supply across extended temperature ranges (−40 °C to +125 °C).

Supply support for NXU0104PWJ 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 logic, discrete, and MOSFET solutions with focus on efficiency, reliability, and miniaturization.

The NXU0104 belongs to Nexperia's dual-supply level translation portfolio, engineered specifically for robust, low-power, mixed-voltage system interconnect in space-constrained industrial and automotive applications.

FAQ

Can NXU0104PWJ translate in both directions between VCCA and VCCB?

No. The NXU0104PWJ is strictly unidirectional: signals flow only from A-side inputs (A1–A4) to B-side outputs (YB1–YB4). It does not support reverse translation. For bidirectional use, consider the NXU0204PWJ, which lacks Schmitt-trigger inputs but enables I²C-compatible two-way communication.

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

When VCCB is disconnected (floating) or drops below 100 mV, the NXU0104PWJ enters suspend mode: all YB1–YB4 outputs immediately enter high-impedance state, and IOFF circuitry blocks back-current flow. This behavior is guaranteed per datasheet Section 8.4 and requires no external intervention.

Is an external pull-up resistor required on the OE pin?

No. The OE pin has no internal pull-up; however, it can be safely left floating or pulled down to GND to ensure outputs remain in high-impedance state during power-up/down. An external pull-up is unnecessary and may conflict with OE's domain-flexible referencing to VCCA or VCCB.

Does NXU0104PWJ support 1.0 V logic on either side?

No. The absolute minimum recommended supply is 0.9 V, but the device is not characterized or guaranteed for reliable operation at exactly 1.0 V. Static parameters (e.g., VT+, VT−) are specified starting at 1.1 V, and JEDEC compliance begins at 1.2 V (JESD8-12). Use only within validated 0.9–5.5 V range with margin.