PMC-Sierra Q4 2006 Earnings Conference Call Scheduled For January 25, 2007.

SANTA CLARA, Calif. -- PMC-Sierra, Inc. (Nasdaq:PMCS) today announced the Company will conduct a conference call with the financial community following the release of its fourth quarter 2006 earnings on Thursday, January 25, 2007, at 1:30 PM Pacific Time/4:30 PM Eastern Time. The conference call will be conducted by Mr. Robert Bailey, PMC-Sierra's Chairman and Chief Executive Officer and Mr. Alan Krock, Vice President and Chief Financial Officer.

PMC-Sierra's fourth quarter 2006 earnings will be released after the stock market closes on January 25, 2007, and will be available at www.pmc-sierra.com. The conference call webcast will be accessible under the Financial Events and Calendar section at http://investor.pmc-sierra.com/. To listen to the conference call live by telephone, dial [phone] approximately ten minutes before the start time. A telephone playback will be available after the completion of the call and can be accessed at [phone] using the access code 9329344. A replay of the webcast will be available for five business days.

About PMC-Sierra

PMC-Sierra(TM) is a leading provider of broadband communications and storage semiconductors for metro, access, fiber to the home, wireless infrastructure, storage, laser printers and customer premises equipment. PMC-Sierra offers worldwide technical and sales support, including a network of offices throughout North America, Europe, Israel and Asia. The company is publicly traded on the NASDAQ Stock Market under the PMCS symbol and is included in the S&P 500 Index. For more information, visit www.pmc-sierra.com.

[c] Copyright PMC-Sierra, Inc. 2007. All rights reserved. PMC is a registered trademark of PMC-Sierra, Inc. in the United States and other countries. PMC-SIERRA, PMCS and "Enabling connectivity. Empowering people." are trademarks of PMC-Sierra, Inc. Other product and company names mentioned herein may be trademarks of their respective owners.