ALISO VIEJO, Calif., April 8, 2015-Microsemi Corporation (Nasdaq:MSCC), a leading provider of semiconductor solutions differentiated by power, security, reliability and performance, announced the expiration, on April 7, 2015, of the waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended ("HSR Act") applicable to its proposed acquisition of Vitesse Semiconductor Corporation (Nasdaq:VTSS) ("Vitesse") through its wholly-owned subsidiary LLIU100 Acquisition Corp.

As previously announced, on March 31, 2015, a wholly-owned subsidiary of Microsemi, LLIU100 Acquisition Corp., commenced a cash tender offer to acquire all of the outstanding shares of Vitesse's common stock for $5.28 per share. The expiration of the HSR Act waiting period satisfies one of the conditions of the tender offer. The completion of the tender offer remains subject to certain other conditions as described in the Tender Offer Statement on Schedule TO filed by Microsemi on March 31, 2015, as amended.

About Microsemi

Microsemi Corporation (Nasdaq: MSCC) offers a comprehensive portfolio of semiconductor and system solutions for communications, defense & security, aerospace and industrial markets. Products include high-performance and radiation-hardened analog mixed-signal integrated circuits, FPGAs, SoCs and ASICs; power management products; timing and synchronization devices and precise time solutions, setting the world's standard for time; voice processing devices; RF solutions; discrete components; security technologies and scalable anti-tamper products; Power-over-Ethernet ICs and midspans; as well as custom design capabilities and services. Microsemi is headquartered in Aliso Viejo, Calif., and has approximately 3,400 employees globally. Learn more at www.microsemi.com.