Nexperia USA Inc. NXS0104PWJ

Overview

NXS0104 from Nexperia is a 4-bit dual-supply translating transceiver with auto-direction sensing and open-drain I/O, enabling bidirectional level translation between 1.65 V–3.6 V (VCC(A)) and 2.3 V–5.5 V (VCC(B)) domains. It features active-HIGH OE control, integrated 10 kΩ pull-ups per port, IOFF partial power-down protection, and supports up to 24 Mbps data rate in push-pull mode. It is used in I²C and 1-wire bus interfacing between mixed-voltage subsystems in mobile and embedded systems.

For engineers reviewing the NXS0104 datasheet, NXS0104 pinout, NXS0104 application, or NXS0104 equivalent, this device is selected for voltage-translation integrity in space-constrained, thermally demanding designs where automatic direction detection, low static current (<15 μA), and robust ESD protection (15 kV HBM on B port) are critical - especially when interfacing 1.8 V controllers with 3.3 V or 5.0 V peripherals.

Technical Context

The NXS0104 implements a switch-type architecture using pass-gate transistors and edge-accelerating one-shot circuits per channel to enable bidirectional translation without external direction control. Each I/O pair (A1–B1 through A4–B4) operates independently with internal 10 kΩ pull-ups referenced to their respective supply rails (VCC(A) or VCC(B)).

Direction sensing is achieved by detecting input transitions at ~0.5×VCCI, triggering a ~50 ns one-shot that temporarily bypasses pull-up resistors via PMOS transistors to reduce output rise time. The IOFF circuit disables outputs during partial power-down, limiting backflow current when either VCC(A) or VCC(B) is at GND.

Key Specifications

Pinout & Package

TSSOP14 (SOT402-1) package: plastic thin shrink small outline, 14-lead, 4.4 mm body width, lead pitch 0.65 mm.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-supply translating transceiver applications.

Compared with NXH0104PW and TXS0104E, the NXS0104 delivers optimal balance of ultra-low ICC (<15 μA), certified IOFF, and industry-leading ESD robustness - making it preferred for battery-sensitive, safety-critical, and high-reliability mixed-voltage interfaces.

Availability

NXS0104 is available at Aetrix Electronics and suitable for mobile handset, automotive infotainment, and industrial sensor hub applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for NXS0104 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 electronics - with leadership in logic, power, and analog solutions.

The NXS0104 belongs to Nexperia's auto-direction voltage translator product line, engineered specifically for seamless I²C and 1-wire interoperability across heterogeneous voltage domains in space- and power-constrained systems.

FAQ

Can NXS0104 translate between 1.8 V and 5.0 V without external components?

Yes. With VCC(A) = 1.8 V and VCC(B) = 5.0 V, the NXS0104 performs bidirectional level translation using its internal 10 kΩ pull-ups and auto-direction sensing. No external MOSFETs, resistors, or direction-control logic are needed - confirmed per Table 5 function table and Section 13.1 application guidance.

What happens if VCC(A) exceeds VCC(B) during normal operation?

VCC(A) must not exceed VCC(B) during active operation per datasheet constraint [Section 8, Note 1]. Exceeding this violates absolute maximum ratings and risks damage to the pass-gate transistors. However, power-up sequencing is unrestricted - either supply may ramp first without harm.

Does NXS0104 support push-pull drivers on both sides?

Yes - the datasheet explicitly specifies 24 Mbps performance with push-pull drivers (Section 2, Features). However, for open-drain buses like I²C, the internal pull-ups suffice; for push-pull use, ensure driver output impedance stays below 50 Ω to meet timing specs (Section 13.3).

How does the one-shot circuit affect PCB layout requirements?

The one-shot pulse duration (~50 ns) imposes trace-length limits: round-trip reflection delay must stay within that window to avoid re-triggering. This mandates short, controlled-impedance traces (<5 cm typical) and low-capacitance connectors - detailed in Section 13.4 Output Load Considerations.