SiRF Technology Holdings (SIRF)

About Motorola

Motorola is a Fortune 100 global communications leader that provides seamless mobility products and solutions across broadband, embedded systems and wireless networks. In your home, auto, workplace, and all spaces in between, seamless mobility means you can reach

the people, things and information you need, anywhere, anytime. Seamless mobility harnesses the power of technology convergence and enables smarter, faster, cost-effective and flexible communication. Motorola had sales of US $31.3 billion in 2004. For more information: www.motorola.com.

Forward-Looking Statements:

Except for the historical information contained herein, the matters set forth in this press release, including, but not limited to, statements regarding the anticipated benefits of the acquisition of GPS chip set product lines from Motorola, including continued collaboration between the companies and benefits to Motorola’s customers of receiving more focused resources, the companies’ expectation that strategic collaboration will enable them to drive a shared vision of accelerating the development and adoption of location-enabled products, expected revenue upside of about ten percent for the second half of 2005, and the expectation that EPS impact will be non dilutive for the rest of the year 2005 and accretive for the calendar year 2006, are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Words such as “agree to,” expect,” “believes,” “anticipates,” “plans,” “expects,” “will,” “predicts,” and similar expressions are intended to identify forward-looking statements. These statements are not guarantees of future performance. SiRF’s actual results could differ materially from those discussed in these forward-looking statements as a result of risks and uncertainties, including, among others, the risk that we may not realize the anticipated benefits of this acquisition, risks associated with acquisitions, including the ability to successfully integrate the acquired technologies or operations, potential diversion of management’s attention and our ability to retain key employees of acquired businesses, our ability to continue to be a preferred supplier to Motorola, the market for GPS-based location awareness capabilities, market demand for and acceptance of current and future products of our customers, particularly Motorola, our ability to complete and commercialize products in development, our ability to continue to collaborate with Motorola, our ability to achieve certain cost reductions in a timely manner, our dependence on foundries to manufacture our products, our ability to keep pace with rapid technological change, the semiconductor industry, international operations and our ability to compete, and other risks and uncertainties discussed in SiRF’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2005 and from time to time in SiRF’s SEC reports. These forward-looking statements speak only as of the date hereof. We do not undertake any obligation to update forward-looking statements.

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Editors Note: SiRF, SiRFstar and the SiRF orbit design are registered trademarks of SiRF Technology, Inc. Other trademarks are the property of their respective companies.