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Express Logic USBX USB stack
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USBX™ (ST EXP-USB) is Express Logic's high-performance USB host, device, and On-The-Go (OTG) embedded stack. It is fully integrated with ThreadX® and is available for STMicroelectronics' STM32 ARM® Cortex®-M based 32-bit microcontrollers. Like ThreadX®, USBX™ is designed to have a small footprint and high-performance, making it ideal for today's deeply embedded applications that require to interface with USB devices or be connected with a Windows/Apple/Linux desktop over USB.

This product is supplied by a third party not affiliated to ST. For complete and latest information on the specification and the purchased parts package, refer to the third party’s website

Key Features

  • Complete STM32 family support
  • USB 1.1 and 2.0 support
  • USB OTG support
  • Host and device side support
  • Fully integrated with ThreadX®
  • Reasonable pricing
  • Royalty-free
  • Complete ANSI C source code
  • Easy to use and powerful services
  • Responsive technical support

Sample & Buy

Part Number Marketing StatusSupplierThird Party link

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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