Several online support options are available, see below. Please review and proceed to selected service.

Technical Resources

like Datasheets, Application Notes, CAD symbols, HW models, BSDL files, evaluation/demo boards, software drivers, etc. Use filtered Search using categories like "Resources", "Tools & Software", "Videos".

Tools for Design Support

Use eDesignSuite to design, for example, a power converter. Or try our simulators to evaluate behavior and optimize performance of ST devices. And don't forget to check out our Evaluation Tools and evaluation boards as potential reference designs for (part of) your application.


Our Community site is offering public technical discussion boards (forums) and FAQs. Don't miss to visit this knowledge base and search for immediate answers 24 hours a day or post your question to people with same mindset who might know the answer.

Support Request - via web form

If you still did not find the information you need, describe your problem in our support request form and we will reply to you as quickly as possible. Same link can also be used to review status and update your support requests.

Sales Contacts

For commerical questions you can contact an ST Sales Office or your local dealer, see complete list of available contacts here. 

Telephone Support Center Business Hours 7:00 AM - 7:00 PM USA CT
  • 1 (844) STMICRO for toll-free calls inside USA
  • 1 (512) 434-1253 for calls outside USA