ALISO VIEJO, Calif., September 01, 2011 — Microsemi Corporation (Nasdaq:MSCC), a leading provider of semiconductor solutions differentiated by power, security, reliability and performance, will present at the Citi 2011 Technology Conference at The Hilton Hotel in New York Sept. 6-8, 2011.

A live Webcast of this presentation will be available for those not able to attend in person through Microsemi's website on Thursday, Sept. 8, 2011 at 9:35 a.m. EDT at www.microsemi.com.

About Microsemi

Microsemi Corporation (Nasdaq:MSCC) offers the industry's most comprehensive portfolio of semiconductor technology. Committed to solving the most critical system challenges, Microsemi's products include high-performance, high-reliability analog and RF devices, mixed signal integrated circuits, FPGAs and customizable SoCs, and complete subsystems. Microsemi serves leading system manufacturers around the world in the defense, security, aerospace, enterprise, commercial, and industrial markets. Learn more at http://www.microsemi.com.

All trademarks are property of Microsemi Corporation. Actel Corporation is a wholly owned subsidiary of Microsemi Corporation.

Contact: Gwen Carlson, Microsemi Corporation, 949.221.7173