Nexperia USA Inc. NXS0101GSH

Overview

NXS0101 from Nexperia is a 1-bit dual-supply auto-sensing bidirectional voltage-level translating transceiver with open-drain I/O, enabling seamless interfacing between 1.8 V, 2.5 V, 3.3 V, and 5.0 V domains. It features independent VCC(A) (1.65–3.6 V) and VCC(B) (2.3–5.5 V) supplies, integrated 10 kΩ internal pull-ups on both A and B ports, and IOFF circuitry for partial power-down protection. It is used in I²C and 1-wire bus translation in smartphone and tablet system interconnects.

For engineers reviewing the NXS0101 datasheet, NXS0101 pinout, NXS0101 application, or NXS0101 equivalent, this device delivers verified 24 Mbps push-pull data rate, sub-10 ns propagation delay (A↔B), -40 °C to +125 °C operation, and robust 8 kV HBM ESD protection on the B port - critical for low-power mixed-voltage embedded interface design.

Technical Context

The NXS0101 implements a switch-type architecture using an N-channel pass-gate transistor biased ~1 V_TH above VCC(A), enabling passive bidirectional conduction without direction control pins. Its auto-direction sensing relies on one-shot edge-accelerator circuits that detect input transitions at ~0.5×VCCI and temporarily activate PMOS drivers (50–70 Ω output impedance) to accelerate rising edges.

Internal 10 kΩ pull-up resistors on both A and B ports provide DC current sourcing; OE is active-HIGH referenced to VCC(A) and forces high-impedance OFF-state when LOW. IOFF functionality disables outputs during power-down, blocking backflow current even when one supply is unpowered - satisfying JEDEC JESD78B Class II latch-up immunity (>100 mA).

Key Specifications

Pinout & Package

Available in three compact packages: TSSOP6 (SOT363-2, 1.25 mm body width), XSON6 (SOT886, 1.0 × 1.45 × 0.5 mm), and ultra-thin XSON6 (SOT1202, 1.0 × 1.0 × 0.35 mm). All variants are 6-terminal, leadless or gull-wing, rated for reflow soldering per JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TXS0101DCUR and NXB0101GW, the NXS0101 uniquely combines OE control, internal pull-ups, auto-direction sensing, and 8 kV B-port ESD - making it the only drop-in solution for space-constrained, hot-pluggable I²C designs requiring full power-domain isolation.

Availability

NXS0101 is available at Aetrix Electronics and suitable for smartphone, tablet, and industrial PLC applications requiring stable component supply across extended temperature ranges and mixed-voltage interface reliability.

Supply support for NXS0101 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 focused on essential efficiency technologies, delivering high-performance logic, analog, and MOSFET solutions for automotive, industrial, and mobile markets.

The NXS series targets low-power, high-reliability bidirectional level translation in space-constrained portable electronics - emphasizing auto-direction sensing, integrated biasing, and robustness across mixed-supply system boundaries.

FAQ

Can NXS0101 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 NXS0101 performs bidirectional translation using its internal 10 kΩ pull-ups on both ports and auto-direction sensing. No external resistors, direction pins, or level-shifting ICs are required - confirmed per Table 6 and Fig. 6 in the Rev. 5 datasheet.

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

VCC(A) must not exceed VCC(B) during active operation, as stated in Tables 4 and 10. Exceeding this violates the absolute maximum rating and risks forward-biasing internal clamps, increasing ICC and potentially degrading long-term reliability. Power-up sequencing is unrestricted, but steady-state operation requires VCC(A) ≤ VCC(B).

Does the NXS0101 support I²C Fast-mode Plus (1 Mbps)?

Yes. With 24 Mbps maximum data rate, sub-10 ns propagation delay, and built-in 10 kΩ pull-ups compatible with I²C bus capacitance limits, the NXS0101 fully supports Fast-mode Plus (1 Mbps) and standard-mode (100 kHz) I²C. Its one-shot acceleration ensures rise times meet t_r ≤ 300 ns requirements under typical 400 pF bus loads.

How does IOFF protect the device during partial power-down?

When either VCC(A) or VCC(B) is powered off, the IOFF circuitry disables the output stage and presents high-impedance on both A and B ports, limiting leakage to ±12 μA max. This prevents damaging backflow current from the live supply into the unpowered domain - validated per JESD78B Class II latch-up testing and Table 9 static characteristics.