MoSys Announces Date of Fourth Quarter and Fiscal Year 2004 Financial

    Business Editors/High-Tech Writers

    SUNNYVALE, Calif.--(BUSINESS WIRE)--Jan. 28, 2005--MoSys, Inc. (Nasdaq:MOSY) today announced it would release its fourth quarter and fiscal year 2004 results for the period ending December 31, 2004 on Wednesday, February 9, after the market closes. Following the release, the Company will host a live audio Web cast and conference call at 5:15 p.m. Eastern Time.
    Mark Voll, Interim CEO and Chief Financial Officer will discuss the company's earnings and operations on the call. Investors and other interested parties may listen to the live Web cast by visiting the investor relations section of the MoSys website at http://www.mosys.com. A Web cast replay will also be available on the company's Web site.

    ABOUT MOSYS

    Founded in 1991, MoSys (Nasdaq:MOSY), develops, licenses and markets innovative memory technologies for semiconductors. MoSys' patented 1T-SRAM technologies offer a combination of high density, low power consumption, high speed and low cost unmatched by other available memory technologies. The single transistor bit cell used in 1T-SRAM memory results in the technology achieving much higher density than traditional four or six transistor SRAMs while using the same standard logic manufacturing processes. 1T-SRAM technologies also offer the familiar, refresh-free interface and high performance for random address access cycles associated with traditional SRAMs. In addition, these technologies can reduce operating power consumption by a factor of four compared with traditional SRAM technology, contributing to making them ideal for embedding large memories in System on Chip (SoC) designs. MoSys' licensees have shipped more than 80 million chips incorporating 1T-SRAM embedded memory technologies, demonstrating excellent manufacturability in a wide range of silicon processes and applications. MoSys is headquartered at 1020 Stewart Drive, Sunnyvale, California 94085. More information is available on MoSys' website at http://www.MoSys.com.

    FORWARD LOOKING STATEMENTS

    This press release may contain forward-looking statements about the Company including, without limitation, benefits and performance expected from use of the Company's 1T-SRAM technologies.
    Forward-looking statements are based on certain assumptions and expectations of future events that are subject to risks and uncertainties. Actual results and trends may differ materially from historical results or those projected in any such forward-looking statements depending on a variety of factors. These factors include but are not limited to, customer acceptance of our 1T-SRAM technologies, the timing and nature of customer requests for our services under existing license agreements, the level of commercial success of licensees' products such as the Nintendo GAMECUBE and cell phone hand sets, ease of manufacturing and yields of devices incorporating our 1T-SRAM, our ability to enhance the 1T-SRAM technology or develop new technologies, the level of intellectual property protection provided by our patents, the vigor and growth of markets served by our licensees and customers, and the impact of our acquisition of ATMOS Corporation , the termination of our merger agreement with Synopsys, Inc. and operations of the Company and other risks identified in the Company's most recent annual report on Form 10-K filed with the Securities and Exchange Commission, as well as other reports that MoSys files from time to time with the Securities and Exchange Commission. MoSys undertakes no obligation to update publicly any forward-looking statement for any reason, except as required by law, even as new information becomes available or other events occur in the future.
    1T-SRAM(R) is a MoSys trademark registered in the U.S. Patent and Trademark Office. All other trade, product, or service names referenced in this release may be trademarks or registered trademarks of their respective holders.

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CONTACT: MoSys, Sunnyvale Mark Voll, CFO, 408-731-1846 markv@mosys.com or Shelton IR Beverly Twing, 972-239-5119 x126 btwing@sheltongroup.com

KEYWORD: CALIFORNIA INDUSTRY KEYWORD: HARDWARE MANUFACTURING NETWORKING EARNINGS CONFERENCE CALLS SOURCE: MoSys, Inc.

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