STMicroelectronics STM32W108C-KEXT
- Part No.:
- STM32W108C-KEXT
- Manufacturer:
- STMicroelectronics
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
STM32W108C-KEXT.pdf
- Description:
- EXTENSION KIT FOR STM32W108
- Quantity:
- Payment:

- Shipping:

Inventory:1,373
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Product details
Overview
STM32W108C-KEXT from STMicroelectronics is an extension kit for the STM32W108xx family of 32-bit ARM® Cortex™-M3 microcontrollers with integrated 2.4 GHz IEEE 802.15.4 transceivers. It supports ZigBee RF4CE and Simplified MAC protocol stacks, features 256 KB Flash memory, and enables point-to-point and remote control/target network implementations for consumer electronics.
For engineers reviewing the STM32W108C-KEXT datasheet, STM32W108C-KEXT pinout, STM32W108C-KEXT application, or STM32W108C-KEXT equivalent, this kit provides validated hardware reference design, USB virtual COM interface, onboard LEDs, and reprogrammable firmware targeting HID devices, set-top box remotes, and custom 802.15.4 mesh nodes.
Technical Context
The STM32W108C-KEXT is a hardware platform-not a semiconductor component-designed to extend the functionality of the STM32W108C-SK starter kit. It includes the STM32W108CBU6 MCU (256 KB Flash, 32 KB RAM), integrated 2.4 GHz transceiver compliant with IEEE 802.15.4-2006, and support for RF4CE and Simplified MAC software libraries.
It interfaces via USB (virtual COM port), exposes GPIOs and UART signals, and integrates status LEDs for real-time debugging. The kit operates at 3.3 V and is compatible with IAR Embedded Workbench for C-based development and protocol stack customization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Kit Type | Extension kit for STM32W108xx evaluation platforms, not a standalone IC or discrete device. |
| Core MCU | STM32W108CBU6: 32-bit ARM Cortex-M3, 256 KB Flash, 32 KB RAM, 2.4 GHz 802.15.4 transceiver. |
| Radio Compliance | Fully compliant with IEEE 802.15.4-2006 PHY/MAC; supports O-QPSK modulation in 2.4 GHz ISM band. |
| Interface Support | USB 2.0 full-speed (virtual COM port), UART, GPIO headers, and LED indicators for signal/activity monitoring. |
| Software Stack | Pre-integrated ZigBee RF4CE stack for remote control applications and Simplified MAC library for custom protocol development. |
| Power Supply | 3.3 V regulated supply; powered via USB or external source; no onboard voltage regulation for analog RF sections. |
Availability
STM32W108C-KEXT is available at Aetrix Electronics and suitable for wireless remote control development, IEEE 802.15.4 protocol validation, and ZigBee RF4CE-based consumer electronics prototyping requiring stable component supply and documented reference hardware.
Supply support for STM32W108C-KEXT 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, sensors, power management ICs, and analog/mixed-signal products for industrial, automotive, and consumer markets.
The STM32W108 series belongs to ST's ultra-low-power wireless MCU product line, engineered specifically for battery-operated IEEE 802.15.4 end devices in remote control, HID, and smart home sensor networks.
FAQ
Is STM32W108C-KEXT a microcontroller or a development kit?
STM32W108C-KEXT is a hardware extension kit-not a bare die or packaged IC. It contains the STM32W108CBU6 MCU mounted on a PCB with USB interface, LEDs, and expansion headers. It requires pairing with the STM32W108C-SK starter kit to form a complete evaluation platform.
Does STM32W108C-KEXT support ZigBee PRO or Thread protocols?
No. The kit's preloaded firmware and documentation only validate ZigBee RF4CE and Simplified MAC (IEEE 802.15.4 MAC-only) implementations. ZigBee PRO and Thread require additional stack licensing, memory resources beyond 256 KB Flash, and are not supported out-of-box on this hardware revision.
Can STM32W108C-KEXT be used without the STM32W108C-SK starter kit?
No. The STM32W108C-KEXT lacks a debugger interface, USB power regulation, and standalone programming circuitry. It is mechanically and electrically designed as an add-on board that connects directly to the STM32W108C-SK via a 20-pin header to share debug, power, and communication resources.
What IDE and toolchain are officially supported for STM32W108C-KEXT firmware development?
IAR Embedded Workbench for ARM (EWARM) is the officially supported IDE per ST's AN3795 and UM1247 documentation. GCC-based toolchains are not validated by ST for this kit; CMSIS and STM32W108 peripheral drivers are provided exclusively for IAR compatibility in the STM32W firmware library v2.0.3.
STM32W108C-KEXT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- STM32
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Transceiver; 802.15.4 (Zigbee®)
- Frequency:
- 2.4GHz
- Contents:
- Board(s)
- Utilized IC / Part:
- STM32W108XX
STM32W108C-KEXT FAQ
1.How can I place an order for STM32W108C-KEXT through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32W108C-KEXT 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 STM32W108C-KEXT reliable?
The price and inventory of STM32W108C-KEXT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32W108C-KEXT is usually 5 days.
3.What payment methods are accepted for STM32W108C-KEXT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32W108C-KEXT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32W108C-KEXT?
STM32W108C-KEXT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32W108C-KEXT 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 STM32W108C-KEXT?
For technical support, including STM32W108C-KEXT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32W108C-KEXT requirements.
6.How does Aetrix verify that STM32W108C-KEXT is sourced from the original manufacturer or authorized distributors?
All STM32W108C-KEXT 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 STM32W108C-KEXT meets industry standards.
7.What is the process for return or replacement of STM32W108C-KEXT?
All STM32W108C-KEXT units undergo pre-shipment inspection (PSI). If there is an issue with STM32W108C-KEXT, 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 STM32W108C-KEXT part is unused and in its original packaging.
Return procedure for STM32W108C-KEXT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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