-- GAAP and Non-GAAP Gross Margin of 57.6 Percent

(PRNewswire) — �Microsemi Corporation (Nasdaq: MSCC), a leading provider of semiconductor solutions differentiated by power, security, reliability and performance, today reported unaudited results for its first quarter of fiscal 2013 ended Dec. 30, 2012.

Net sales for Microsemi's first quarter of fiscal 2013 were $247.6 million, up 2.8 percent over the prior year quarter. GAAP gross margin was 57.6 percent, improving 540 basis points over the prior year quarter and improving 40 basis points sequentially. GAAP operating margin was 10.3 percent, improving 1,060 basis points over the prior year quarter and improving 20 basis points sequentially. GAAP net income for the first quarter of 2013 was $14.2 million compared to a GAAP net loss of $44.6 million in the prior year quarter and GAAP net income of $11.6 million in the prior quarter. GAAP diluted earnings per share for the first quarter of 2013 were $0.16.

For the first quarter of fiscal 2013, non-GAAP gross margin was 57.6 percent, improving 290 basis points over the prior year quarter and improving 40 basis points sequentially. Non-GAAP operating margin was 22.9 percent, improving 140 basis points over the prior year quarter. Non-GAAP net income was $45.0 million and non-GAAP diluted earnings per share were $0.50.

"We continue to execute on our long term strategy," stated James J. Peterson, president and CEO of Microsemi. "In a difficult environment, Microsemi delivered results within guidance and continued to lay the foundation for future revenue and profitability growth by improving product mix and gross margins, paying down our term loan, and implementing a disciplined cost control program. As we look toward expected recovery in 2013, we will continue to see accelerating success of Microsemi's total solution approach in the marketplace."

Business Outlook
Microsemi expects net sales in the second quarter of fiscal year 2013 to decline 4 percent to 8 percent, sequentially, and expects non-GAAP diluted earnings per share of between $0.37 and $0.43.

Microsemi regularly announces a quarterly outlook in the form of issuing a news release and does not undertake to update any of this information between such public announcements to reflect subsequent events or circumstances. Please refer to the "SAFE HARBOR" STATEMENT below for risks that may affect future actual results.

Non-GAAP Financial Measures
For further information regarding Microsemi's non-GAAP financial measures, please refer to "Notes Reconciling Non-GAAP Financial Information to GAAP Financial Information" below. GAAP results are reconciled to non-GAAP results in the accompanying financial tables.

Information for First Quarter 2013 Earnings Conference Call and Webcast:

Date: Thursday, Jan. 24, 2013
Time: 4:45 p.m. EST (1:45 p.m. PST)

To access the webcast, log on to www.microsemi.com, go to the Investors section and then to Events and Presentations. To listen to the live webcast, visit this website approximately 15 minutes prior to the start of the call to register, download and install any necessary audio software. For those unable to participate during the live webcast, a replay will be available shortly after the call on the website for 90 days.

To participate in the conference call by telephone, call 877-264-1110 or 706-634-1357 at approximately 4:30 p.m. EST (1:30 p.m. PST). Please provide the following ID Number: 88746343.

A telephonic replay will be available from 6 p.m. EST (3 p.m. PST) on Thursday, Jan. 24, 2013 through 11:59 p.m. EST (8:59 p.m. PST) on Thursday, Jan. 31, 2013. To access the replay, call: 855-859-2056 or 404-537-3406. Please enter the following ID Number: 88746343.

About Microsemi Corporation
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, radiation-hardened and highly reliable analog mixed-signal integrated circuits, FPGAs, SoCs and ASICs; power management products; timing and 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 3,000 employees globally. Learn more at www.microsemi.com.

PLEASE READ THE FOLLOWING FACTORS THAT CAN MATERIALLY AFFECT MICROSEMI'S FUTURE RESULTS.

"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, including without limitation statements concerning Microsemi's net sales, margins and earnings guidance, our belief that Microsemi is positioned for continued growth, and any other statements or beliefs regarding the company's plans or expectations. Other examples of forward looking statements that are incorporated in our current and expected results include, but are not limited to, statements concerning our expectations that we will be able to successfully integrate acquired companies and personnel with our existing operations; expectations that plant consolidations will result in anticipated cost savings without unanticipated costs or expenses; expectations regarding tax exposures and future tax rates, our ability to realize deferred tax assets, and the effect of examinations by US, state or foreign jurisdictions; expectations regarding competitive conditions; new market opportunities and emerging applications for our products; the uncertainty of litigation, the costs and expenses of litigation, and the potential material adverse effect litigation could have on our business and results of operations; beliefs that our customers will not cancel orders or terminate or renegotiate their purchasing relationships with us; expectation that we will not suffer production delays as a result of a supplier's inability to supply parts; the effect of events such as natural disasters and related disruptions on our operations, including, without limitation, the effects of Hurricane Sandy in the northeast United States; beliefs that we stock adequate supplies of all materials; beliefs that we will be able to successfully resolve any disputes and other business matters as anticipated; beliefs that we will be able to meet our operating cash and capital commitment requirements in the foreseeable future; critical accounting estimates; expectations regarding our financial and operating results; expectations regarding our liquidity and capital resources, including our loan covenants; expectations regarding our performance and competitive position in future periods; and expectations regarding our outlook for our end markets. These forward-looking statements are based on Microsemi's 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 continued negative or worsening worldwide economic conditions or market instability; downturns in the highly cyclical semiconductor industry; intense competition in the semiconductor industry and resultant downward price pressure; inability to develop new technologies and products to satisfy changes in customer demand or the development by the company's competitors of products that decrease the demand for Microsemi's products; unfavorable or declining conditions in end markets; inability of Microsemi's compound semiconductor products to compete successfully with silicon-based products; production delays related to new compound semiconductors; variability of the company's manufacturing yields; the concentration of the factories that service the semiconductor industry; delays in beginning production, implementing production techniques, resolving problems associated with technical equipment malfunctions, or issues related to government or customer qualification of facilities; potential effects of system outages; the effect of events such as natural disasters and related disruptions on our operations, including, without limitation, the impact of Hurricane Sandy in the northeast United States; inability by Microsemi to fulfill customer demand and resulting loss of customers; variations in customer order preferences; difficulties foreseeing future demand; rises in inventory levels and inventory obsolescence; potential non-realization of expected orders or non-realization of backlog; failure to make sales indicated by the company's book-to-bill ratio; Microsemi's reliance on government contracts for a portion of its sales, including impacts of potential sequestration under the Budget Control Act of 2011; risks related to the company's international operations and sales, including availability of transportation services, political instability and currency fluctuations; increases in the costs of credit and the availability of credit or additional capital only under more restrictive conditions or not at all; unanticipated changes in Microsemi's tax provisions, results of tax examinations or exposure to additional income tax liabilities; changes in generally accepted accounting principles; principal, liquidity and counterparty risks related to Microsemi's holdings in securities; environmental or other regulatory matters or litigation, or any matters involving contingent liabilities or other claims; the uncertainty of litigation, the costs and expenses of litigation, the potential material adverse effect litigation could have on Microsemi's business and results of operations if an adverse determination in litigation is made, and the time and attention required of management to attend to litigation; difficulties in determining the scope of, and procuring and maintaining, adequate insurance coverage; difficulties and costs of protecting patents and other proprietary rights; the hiring and retention of qualified personnel in a competitive labor market; acquiring, managing and integrating new operations, businesses or assets, and the associated diversion of management attention or other related costs or difficulties; uncertainty as to the future profitability of acquired businesses, and delays in the realization of, or the failure to realize, any accretion from acquisition transactions; any circumstances that adversely impact the end markets of acquired businesses; and difficulties in closing or disposing of operations or assets or transferring work, assets or inventory from one plant to another. 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 Microsemi's most recent Form 10-K and any 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. Amounts reported in this release are preliminary and subject to finalization prior to the filing of our next Form 10-Q.