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Silicon Labs SIWX91X-RB4342A

Name: SIWX91X-RB4342A
Brand: Silicon Labs
SKU: SIWX91X-RB4342A
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SIWX91X-RB4342A

Manufacturer:: Silicon Labs

Category:: RF, RFID, Wireless Evaluation Boards

Package:

Datasheet:: SIWX91X-RB4342A.pdf

Description:: SIWX917 WI-FI 6 8MB FLASH + 8MB

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:295

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Product details

Overview

SIWX91X-RB4342A from Silicon Labs is a plug-in radio board for the Wireless Pro Kit Mainboard (BRD4002A), integrating the SiWG917 Wi-Fi 6 and Bluetooth LE SoC with 8 MB Flash, 8 MB external PSRAM, and 320 kB on-chip RAM. It features a 2.4 GHz chip antenna and enables full-stack wireless application development including secure over-the-air updates, low-power IoT sensor networking, and dual-mode connectivity.

For engineers reviewing the SIWX91X-RB4342A datasheet, SIWX91X-RB4342A pinout, SIWX91X-RB4342A application, or SIWX91X-RB4342A equivalent, this board delivers integrated debugging via on-board J-Link, real-time energy profiling with Advanced Energy Monitor (AEM), virtual COM port support, and breakout access to all SiWG917 I/Os - critical for rapid prototyping of Wi-Fi 6/Bluetooth LE edge devices.

Technical Context

The SIWX91X-RB4342A implements the SiWG917M111MGTBA SoC in a compact radio board form factor, designed exclusively for use with BRD4002A mainboards. It routes all core interfaces - including QSPI PSRAM, chip antenna RF path, UART, I²C (to Si7021 sensor), and GPIO - through standardized connectors and breakout pads.

Power delivery is configurable via a three-position slide switch (AEM/SELF/BAT) enabling precise current measurement, USB-hosted operation, or coin-cell-powered field testing. The board supports simultaneous Wi-Fi 6 (802.11ax) and Bluetooth LE 5.2 protocol stacks with hardware-accelerated security engines and memory-mapped peripherals accessible through Simplicity Studio.

Key Specifications

Parameter	Value and Actual Design Meaning
Core SoC	SiWG917M111MGTBA: Dual-band Wi-Fi 6 + Bluetooth LE 5.2 SoC with ARM Cortex-M33
Memory	8 MB internal Flash + 8 MB external QSPI PSRAM + 320 kB on-chip SRAM
RF Interface	Integrated 2.4 GHz chip antenna; no external RF connector required
Debug & Dev Tools	On-board J-Link debugger with Virtual COM port, AEM, PTI, and SWD support
Expansion Interface	20-pin EXP header with fixed SPI/I²C/UART locations and flexible GPIO mapping
Power Options	Selectable via slide switch: AEM-monitored VMCU (USB-powered), SELF (USB regulator), or BAT (CR2032)
Sensor Integration	Direct I²C connection to Si7021 relative humidity and temperature sensor on mainboard

Availability

SIWX91X-RB4342A is available at Aetrix Electronics and suitable for Wi-Fi 6/Bluetooth LE gateway validation, low-power sensor node development, and secure firmware update prototyping requiring stable component supply and full toolchain integration.

Supply support for SIWX91X-RB4342A 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

Silicon Labs is a fabless semiconductor company specializing in secure, intelligent wireless SoCs and development ecosystems for IoT applications.

The SIWX91X-RB4342A belongs to the Wireless Pro Kit radio board product line, engineered to accelerate evaluation and firmware development for Silicon Labs' Wi-Fi 6 and Bluetooth LE SoCs in real-world embedded environments.

FAQ

What is the primary function of the SIWX91X-RB4342A in the Wireless Pro Kit?

The SIWX91X-RB4342A serves as the radio board module hosting the SiWG917 Wi-Fi 6 and Bluetooth LE SoC within the Wireless Pro Kit ecosystem. It plugs directly into the BRD4002A mainboard and provides full RF functionality, memory subsystem, and I/O routing - enabling complete wireless stack development without external hardware. SIWX91X-RB4342A is not standalone; it requires the mainboard for power, debugging, and peripheral access.

Does the SIWX91X-RB4342A include its own debugger or rely on the mainboard?

The SIWX91X-RB4342A does not contain an independent debugger. It relies entirely on the on-board SEGGER J-Link debugger integrated into the BRD4002A mainboard. This debugger connects to the SiWG917 via the debug connector and supports SWD, SWO, PTI, and Virtual COM port - all accessible through USB or Ethernet when the SIWX91X-RB4342A is mounted on the mainboard.

Can the SIWX91X-RB4342A operate independently without the BRD4002A mainboard?

No. The SIWX91X-RB4342A is a plug-in radio board designed exclusively for use with the BRD4002A Wireless Pro Kit Mainboard. It lacks onboard power regulation (no USB regulator), user interface elements (LEDs/buttons/display), sensors, and debugging circuitry. All essential functions - including power selection, AEM, VCOM, and expansion - are provided by the mainboard.

What memory resources are accessible on the SIWX91X-RB4342A?

The SIWX91X-RB4342A integrates the SiWG917 SoC with 8 MB internal Flash, 320 kB on-chip SRAM, and interfaces to 8 MB external QSPI PSRAM. Memory is mapped and managed by the SoC's memory controller; no additional memory ICs reside on the SIWX91X-RB4342A board itself. PSRAM access is enabled via dedicated QSPI pins routed to the mainboard's breakout pads.

How is RF connectivity implemented on the SIWX91X-RB4342A?

The SIWX91X-RB4342A uses an integrated 2.4 GHz chip antenna directly bonded to the SiWG917 RF output, eliminating the need for external RF connectors or matching networks. The antenna layout is optimized for PCB-level integration and complies with FCC/IC/CE regulatory requirements for conducted and radiated emissions. No RF test ports or SMA connectors are present on the SIWX91X-RB4342A.

SIWX91X-RB4342A Specifications

Product attributes: Attribute value

Manufacturer:: Silicon Labs

Series:: -

Packaging:: Box

Product Status:: Active

Type:: Transceiver; 802.11 b/g/n/ax (Wi-Fi, WiFi, WLAN), Bluetooth® 5.x (BLE)

Frequency:: 2.4GHz

Contents:: Board(s)

Utilized IC / Part:: SiWG917

SIWX91X-RB4342A FAQ

1.How can I place an order for SIWX91X-RB4342A through Aetrix?

Please submit a Request for Quotation (RFQ) for SIWX91X-RB4342A on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for SIWX91X-RB4342A reliable?

The price and inventory of SIWX91X-RB4342A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SIWX91X-RB4342A is usually 5 days.

3.What payment methods are accepted for SIWX91X-RB4342A?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SIWX91X-RB4342A transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SIWX91X-RB4342A?

SIWX91X-RB4342A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SIWX91X-RB4342A order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for SIWX91X-RB4342A?

For technical support, including SIWX91X-RB4342A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SIWX91X-RB4342A requirements.

6.How does Aetrix verify that SIWX91X-RB4342A is sourced from the original manufacturer or authorized distributors?

All SIWX91X-RB4342A products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SIWX91X-RB4342A meets industry standards.

7.What is the process for return or replacement of SIWX91X-RB4342A?

All SIWX91X-RB4342A units undergo pre-shipment inspection (PSI). If there is an issue with SIWX91X-RB4342A, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The SIWX91X-RB4342A part is unused and in its original packaging.

Return procedure for SIWX91X-RB4342A:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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