Microsemi Joins Consortium Driving Growth in Power over Ethernet Market

PoETec-Defined Interfaces Aim to Speed Equipment Designs

• Press Release
• Source: Microsemi Corporation
• On 8:30 am EDT, Wednesday September 30, 2009

IRVINE, Calif., Sept. 30, 2009 (GLOBE NEWSWIRE) -- Microsemi Corporation (Nasdaq:MSCC - News), a leading manufacturer of high performance analog/mixed signal integrated circuits and high reliability semiconductors, announced today that it has joined the PoE Technology Consortium (PoETec) of industry-leading networking component, integrated circuit and systems companies serving the Power over Ethernet (PoE) market.

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Symbol	Price	Change
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PoETec consortium members aim to accelerate the design process for Power over Ethernet equipment by defining common interfaces that ensure interoperability and ease of use, thereby driving growth within the PoE marketplace.

"By joining PoETec we expand Microsemi's presence within the PoE channel, providing customers an additional design option to implement PoE switches and midspans with our PoE integrated circuits," said Daniel Feldman, Director of Marketing at Microsemi's Analog Mixed Signal Group. "PoETec's integrated RJ45 PoE solution is perfect for customers looking for the highest integration."

Microsemi offers 1-port, 4-port, 8-port, 16-port, 24-port and 48-port reference designs for daughterboard or onboard implementations of PoE switches and midspans using its state of the art IEEE802.3af and IEEE802.3at families. With its PoETec membership Microsemi adds 12-port and 8-port PoETec-compatible reference designs, based on the PD69012 and PD69008 IEEE802.3at PoE PSE Managers.

Microsemi's PoETec solutions support unique features including dynamic power management, emergency power management and detection of pre-standard Cisco devices.

PoE allows the power necessary to operate such end devices as phones, security cameras and wireless LAN access points to be carried by data cables, rather than by separate power cords. It simplifies network installations, resulting in lower cost, less downtime, easier maintenance and greater installation flexibility.

The technology was pioneered by PowerDsine, a founding member of the IEEE 802.3af Task Force, prior to its acquisition by Microsemi. Microsemi has extended this technological leadership as a major contributor to the latest IEEE 802.3at standards for high power PoE.

About Microsemi

Microsemi Corporation, with corporate headquarters in Irvine, California, is a leading designer, manufacturer and marketer of high performance analog and mixed-signal integrated circuits and high reliability semiconductors. The company's semiconductors manage and control or regulate power, protect against transient voltage spikes and transmit, receive and amplify signals.

Microsemi's products include individual components as well as integrated circuit solutions that enhance customer designs by improving performance and reliability, battery optimization, reducing size or protecting circuits. The principal markets the company serves include implanted medical, defense/aerospace and satellite, notebook computers, monitors and LCD TVs, automotive and mobile connectivity applications. More information may be obtained by contacting the company directly or by visiting its website at http://www.microsemi.com.

The Microsemi Corporation logo is available at http://www.globenewswire.com/newsroom/prs/?pkgid=1233

"Safe Harbor" Statement under the Private Securities Litigation Reform Act of 1995: Any statements set forth in this news release that are not entirely historical and factual in nature, including without limitation statements concerning having joined the PoE Technology Consortium, are forward-looking statements. These forward-looking statements are based on our current expectations and are inherently subject to risks and uncertainties that could cause actual results to differ materially from those expressed in the forward-looking statements. The potential risks and uncertainties include, but are not limited to, such factors as rapidly changing technology and product obsolescence, potential cost increases, variations in customer order preferences, weakness or competitive pricing environment of the marketplace, uncertain demand for and acceptance of the company's products, adverse circumstances in any of our end markets, results of in-process or planned development or marketing and promotional campaigns, difficulties foreseeing future demand, potential non-realization of expected orders or non-realization of backlog, product returns, product liability, and other potential unexpected business and economic conditions or adverse changes in current or expected industry conditions, difficulties and costs of protecting patents and other proprietary rights, inventory obsolescence and difficulties regarding customer qualification of products. In addition to these factors and any other factors mentioned elsewhere in this news release, the reader should refer as well to the factors, uncertainties or risks identified in the company's most recent Form 10-K and all subsequent Form 10-Q reports filed by Microsemi with the SEC. Additional risk factors may be identified from time to time in Microsemi's future filings. The forward-looking statements included in this release speak only as of the date hereof, and Microsemi does not undertake any obligation to update these forward-looking statements to reflect subsequent events or circumstances.

Microsemi Corporation
Financial Contact:
John Hohener, Vice President and CFO
  (949) 221-7100
Editorial Contact:
Cliff Silver, Corporate Communications Manager
  (949) 221-7100