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- First Product Available on Microsemi's New E-Commerce Site - Speeds design-in of LX1710 Single Channel AudioMAX® Controller - 35 Watt Power Provides Near-Audiophile Sound with 2-Ohm Speakers

The evaluation kit, which includes a fully functional amplifier based on Microsemi's LX1710 AudioMAX single-channel controller IC, can provide up to 50 watts of power for popular 2-ohm speakers.

``This kit will allow audio designers to quickly and easily evaluate the 1710 control IC. It also can be instrumental in system-level decision-making, comparing Class D with traditional linear topologies,'' said Roger Holliday, Vice President of Sales and Marketing for power management products. ``We provide everything they need, except for their choice of a power source and speakers.''

Holliday added, ``We're finding a growing interest in our Class D technology, driven primarily by applications requiring a reduction in heat, and efficiency enhancements.

``Applications for the single-channel AudioMAX chip include PC sound cards, notebook docking stations, portable/wireless speaker systems, automotive PC, and musical instruments,'' he said.

Holliday noted that the LX1710 is a second-generation AudioMAX design having superior THD and signal-to-noise specs to its predecessor. At 10 watts, the device measures THD+N levels of .06% and an SNR of 81dBV for its single-channel controller.

The new controller IC comes in two versions, the LX1710 with slightly higher fidelity and the LX1711 with a maximum power output greater than 50 watts. Both versions can be powered by as little as 7 volts dc and are packaged in a standard 28-pin wide body SOIC package.

``For a number of years, Microsemi has benefited from some of the most advanced internal Web communications capabilities in the industry,'' said Manuel Lynch, Director of Worldwide Marketing and Business Development. ``We've also been a pioneer in developing our external Web capabilities, so today's launch of full-scale e-store is in keeping with our objectives to be a leader in using Internet capabilities.''

Until now, semiconductor companies -- including Microsemi -- provided their customers with Web ordering capability by routing inquiries to appropriate distribution points outside the company.

``Instant gratification is such a part of our culture today that we believe anything a company can do to speed the ordering process is an edge. We want www.Microsemi.com to be there first,'' Lynch said.

In OEM quantities of 1K, the LX1710 is priced at $3.15 and the LX1711 at $3.25. The new evaluation kit is priced at $49.00.

About Microsemi

Microsemi is a leading designer, manufacturer and marketer of analog, mixed-signal and discrete semiconductors. The company's semiconductors manage and regulate power, protect against transient voltage spikes and transmit, receive and amplify signals.

Microsemi products include individual components as well as complete circuit solutions that enhance customer designs by providing battery optimization, reducing size or protecting circuits. Markets the company serves include mobile connectivity, computer/peripherals, telecommunications, medical, industrial/commercial, space/satellite and military.

More information may be obtained by contacting the company directly or by visiting its Web site at http://www.microsemi.com.

``Safe Harbor'' Statement under the Private Securities Litigation Reform Act of 1995: Any statements set forth in the news release that are not entirely historical and factual in nature are forward-looking statements. For instance, all statements of belief and expectations are forward-looking statements. Forward-looking statements are inherently subject to risks and uncertainties, some of which cannot be predicted or quantified. Potential risks and uncertainties include, but are not limited to, such factors as the difficulties regarding the making of estimates and projections, hiring and retention of qualified technical personnel in a competitive labor market, rapidly changing technology and product obsolescence, the ability to realize cost savings or productivity gains, the ability to improve capacity utilization, potential cost increases, the strength and competitive pricing environment of the marketplace, demand for and acceptance of the company's products, the results of planned development, marketing and promotional campaigns, changes in demand for products, difficulties of foreseeing future demand, effects of limited visibility of future sales, potential non-realization of expected orders or non-realization of backlog, business and economic conditions or adverse changes in current industry conditions, customer order preferences, and fluctuations in market prices of the company's stock, difficulties in implementing company strategies, environmental matters, litigation, difficulties protecting proprietary rights, and inventory obsolescence. 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 and risks identified in the company's most recent Form 10-K and subsequent Forms 10-Q, and the final prospectus on Form S-3 filed on June 1, 2000 by the company with the Securities and Exchange Commission. The company does not undertake to supplement or correct any information in this release that is or becomes incorrect.

Editors' Note: Please forward reader inquiries to Microsemi Marketing Communications, 11861 Western Avenue, Garden Grove, Calif., 92841-2119.

Investor Inquiries: David R. Sonksen, Microsemi Corporation, Santa Ana, CA 714/979-8220; or Sean Collins or William F. Coffin, Coffin Communications, Sherman Oaks, CA 818/789-0100.

Contact:

     Microsemi Corporation, Santa Ana
     David R. Sonksen, 714/979-8220 (financial contact)
                       714/966-5256 (fax)
     Cliff Silver, 714/372-8357 (editorial contact)
                   714/372-3566 (fax)