Actel to Present at 2009 Barclays Capital Global Technology Conference

Actel to also Present at FMSI Small Cap Ideas Conference and UBS Technology Foodchain Mini Conference

MOUNTAIN VIEW, Calif., November 12, 2009 — Actel Corporation (NASDAQ: ACTL) today announced that Maurice Carson, executive vice president and chief financial officer, will present at the 2009 Barclays Capital Global Technology Conference, to be held at the Fairmont Hotel in San Francisco, California, on December 9, 2009 at 3:00 p.m. PT. A live audio webcast of the presentation will be available.

In addition, Mr. Carson will attend the FMSI Small Cap Ideas Conference on November 16, 2009 at the Harvard Club in New York City (www.wsw.com/webcast/fmsi/actl/). This conference is sponsored by David Kanen, vice president of Institutional Sales for First Midwest Securities. For more information or to register for the event, please contact David Kanen by calling (631) 863-3100 or via email at dkanen@firstmidwestsecurities.com.

Mr. Carson will also participate in the UBS Technology Foodchain Mini Conference, to be held at UBS Investment Bank-Midtown Manhattan Office in New York City, on Thursday, November 19^th.

About Actel
Actel is the leader in low-power FPGAs and mixed-signal FPGAs, offering the most comprehensive portfolio of system and power management solutions. Power Matters. Learn more at www.actel.com.

Actel, IGLOO, Actel Fusion, ProASIC, Libero, Pigeon Point and the associated logos are trademarks or registered trademarks of Actel Corporation. All other trademarks and service marks are the property of their respective owners.

Contact: Gwen Carlson, Microsemi Corporation, 949.221.7173