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Who is Microsemi? 


Microsemi Corporation was a semiconductor company known for its broad portfolio of products including FPGAs, power management products, Ethernet solutions, timing and synchronization devices, enterprise storage and communication solutions, Power over Ethernet (PoE) ICs and midspans, discrete components and more. See our Microsemi Products page for more information on Microsemi and the products it sold.

What happened to Microsemi?


Microchip announced the acquisition of Microsemi on March 1, 2018 and the merger was completed on May 29, 2018.

Who owns Microsemi? 


Microchip Technology Inc. owns Microsemi Corporation and Microchip officially bought Microsemi on 2018.

Where is Microsemi located?


Prior to its acquisition by Microchip, Microsemi was headquartered in Aliso Viejo, California and had offices in the Asia-Pacific region, Europe, Africa, the Middle East, the United States and Canada.

Are Microchip and Microsemi the same? 


No, Microchip Technology and Microsemi Corporation were separate companies until Microchip acquired Microsemi. Microsemi is now part of Microchip. While Microsemi no longer exists as a separate entity.

What happened to Actel?


Microsemi announced the acquisition of Actel on October 4, 2010 and Microchip announced the acquisition of Microsemi on March 1, 2018.

What happened to Adaptec® Inc.?


PMC-Sierra announced the acquisition of Adaptec Inc. on May 10, 2010 and Microsemi announced the acquisition of PMC-Sierra on January 15, 2016. Microchip announced the acquisition of Microsemi on March 1, 2018.

What happened to PMC-Sierra?


Microsemi announced the acquisition of PMC-Sierra on January 15, 2016 and Microchip announced the acquisition of Microsemi on March 1, 2018.

Where can I buy Microsemi products? 


You can purchase Microsemi products through:

What happened to Microsemi’s support site? 


Microsemi’s support site has been merged into the Microchip Support portal. For assistance, visit our Support page to submit a ticket, access documentation or chat with a representative.

What if I still have questions? 


We have multiple options to get you the help you need:

  • Visit our Support page to explore different support options, including our knowledge base and community forums.
  • Go to our Contact Us page to explore options for getting into contact with a Microchip expert.
  • Do you have questions about placing an order? Check out our FAQs for Orders.

Still need help? 


Our Client Support team is here to support you. Use the link below to schedule a call with a member of our team or submit a question for assistance and we will follow up with you as soon as possible.











Microchip Support