Nexperia USA Inc. NXS0506GU-Q100X

Overview

NXS0506GU-Q100 from Nexperia is an AEC-Q100 Grade 2 qualified, SD 3.0–compatible bidirectional dual-supply level translator with integrated auto-direction control, EMI filtering, and IEC 61000-4-2 Level 4 ESD protection (8 kV contact / 15 kV air on card-side pins). It interfaces host systems (1.1 V–1.95 V) with SD/microSD/MMC cards (1.7 V–3.6 V), supporting SDR104 (208 MHz), DDR50, and all legacy SD modes up to 104 MB/s in automotive infotainment and telematics modules.

For engineers reviewing the NXS0506GU-Q100 datasheet, NXS0506GU-Q100 pinout, NXS0506GU-Q100 application, or NXS0506GU-Q100 equivalent, key selection criteria include its zero-clamping ESD architecture, feedback clock (CLKFB) for timing margin recovery in read-mode, integrated 70 kΩ host-side pull-ups, and XQFN16 (SOT1161-1) package optimized for high-density mobile PCBs.

Technical Context

The device implements a fully autonomous direction-sensing logic that eliminates external control signals-data flow direction (host→card or card→host) is determined dynamically per channel using voltage transition monitoring on CMD and DAT lines. Its bidirectional translation uses separate supply domains (VCCA for host, VCCB for card) with independent input/output thresholds aligned to SD 3.0 electrical specifications across all supported modes.

CLKFB provides a dedicated feedback path from card-side clock (CLKB) back to host, compensating for PCB trace delay to preserve setup/hold margins during high-speed reads. Integrated EMI filters on all I/Os suppress harmonics above 1 GHz, while the zero-clamping ESD architecture routes transient energy directly to GND without coupling stress to the host side.

Key Specifications

Pinout & Package

XQFN16 plastic extremely thin quad flat package (SOT1161-1), 16-terminal no-lead construction with exposed thermal pad; body dimensions 1.80 mm × 2.60 mm × 0.50 mm; 0.4 mm pitch; terminal 1 index area marked on top surface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TXS0108E-Q1 and NLSX4014MUTAG, the NXS0506GU-Q100 uniquely integrates CLKFB, zero-clamping ESD, and auto-direction in a single AEC-Q100–qualified package-reducing total solution size by 32% and eliminating 12 external components required by alternatives.

Availability

NXS0506GU-Q100 is available at Aetrix Electronics and suitable for automotive infotainment head units, ADAS data loggers, and telematics control units requiring stable component supply, long-term lifecycle support, and AEC-Q100 Grade 2 compliance.

Supply support for NXS0506GU-Q100 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, and efficient discrete, logic, and MOSFET solutions with leadership in automotive-grade reliability and miniaturized packaging.

The NXS series targets high-speed memory card interface challenges in automotive and industrial systems, focusing on signal integrity preservation, ESD robustness, and integration density for space-constrained PCBs.

FAQ

What is the purpose of the CLKFB pin?

CLKFB provides a phase-compensated feedback clock from the card-side CLKB signal back to the host, counteracting PCB trace delay to recover timing margin during high-speed SD card read operations. It is essential for maintaining setup/hold compliance in SDR104 mode and must be routed with controlled impedance and minimal stub length.

Can the DAT0A/DAT1A pins be swapped with DAT2A/DAT3A on the PCB?

Yes-the DAT0, DAT1, DAT2, DAT3, and CMD channels are functionally identical internally. Swapping these pins (e.g., DAT0A ↔ DAT1A or DAT2A ↔ DAT3A) is explicitly supported per Section 9.6 to ease PCB routing without affecting SD protocol functionality or timing performance.

Does the device require external pull-up resistors on the host side?

No-NXS0506GU-Q100 integrates 70 kΩ pull-up resistors on all host-side inputs (CMDA, DAT0A–DAT3A, CLKA). This eliminates the need for eight external resistors, reducing BOM count, PCB area, and potential signal integrity degradation from parasitic inductance.

How does the zero-clamping ESD architecture protect the host system?

The zero-clamping architecture routes ESD transients on card-side pins (DAT0B–DAT3B, CMDB, CLKB) directly to GND through internal clamping diodes, preventing any voltage overshoot from propagating to the host-side interface. This ensures host SoC I/Os remain at safe voltage levels even during 15 kV air-discharge events.