MoSys Expands Agreement with Applied Micro Circuits Corporation

AMCC Uses MoSys' 1T-SRAM Embedded Memory Technologies for Development of Traffic Management Communications Tools

SUNNYVALE, Calif.--(BUSINESS WIRE)--Feb. 24, 2003-- MoSys, Inc. (Nasdaq:MOSY) the industry's leading provider of high density SoC embedded memory solutions, today announced an expanded relationship with Applied Micro Circuits Corp. (AMCC) (Nasdaq:AMCC). AMCC incorporates MoSys' 1T-SRAM(R) embedded memory technologies into its traffic management solutions, providing the high-performance memory necessary for AMCC's high-speed networking ICs.

"With MoSys' advanced memory technologies, AMCC can offer our customers leading-edge solutions with the increased performance needed to drive today's optical networks," said Greg Winner, senior vice president engineering and quality, AMCC. "MoSys' 1T-SRAM embedded memory offers superior density than other technologies and we look forward to extending our relationship with the company by incorporating these unique memory technologies into our telecommunications products."

"The high-density memory capabilities of MoSys' 1T-SRAM allows AMCC to develop innovative products that deliver a superior level of systems integration," said Mark-Eric Jones, vice president and general manager of intellectual property, MoSys. "This unique memory capability, which is compatible with standard CMOS technology, enables real systems-on-a-chip for the networking arena."

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 it ideal for embedding large memories in System on Chip (SoC) designs. MoSys' licensees have shipped more than 50 million chips incorporating 1T-SRAM embedded memory, demonstrating the excellent manufacturability of the technology 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.

ABOUT AMCC

AMCC designs, develops, manufactures, and markets high-performance, high-bandwidth silicon solutions empowering intelligent wide-area networks. AMCC utilizes a combination of digital, mixed-signal and high-frequency analog design expertise coupled with system-level knowledge and multiple silicon process technologies to offer integrated circuit products that enable the transport of voice and data over fiber optic networks. The company's system solution portfolio includes switch fabric, traffic management, network processor, framer/mapper, PHY and PMD devices that address the high-performance needs of the evolving intelligent optical network. AMCC's corporate headquarters are located in San Diego, California. Sales and engineering offices are located throughout the world. For further information regarding AMCC, please visit our Web site at http://www.amcc.com.

AMCC Forward Looking Statements
The statements contained in this press release that are not purely historical are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Such forward-looking statements including statements relating to the relationship, potential sales resulting from the relationship or new products derived from the relationship are subject to a number of risks and uncertainties, including the risk that the relationship would not result in such sales or products or that such products would not be successfully developed or achieve market acceptance, as well as the other risks and uncertainties set forth in the Company's Annual Report on Form 10-K for the year ended March 31, 2002, and in other filings of the Company with the Securities and Exchange Commission. As a result of these risks and uncertainties, actual results may differ materially from these forward-looking statements. The forward-looking statements contained in this news release are made as of the date hereof and AMCC does not assume any obligation to update any forward-looking statement.

Note for Editors:
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.

"Safe Harbor" Statement under the Private Securities Litigation Reform Act of 1995: Statements in this press release regarding MoSys, Inc.'s business which are not historical facts are "forward-looking statements" that involve risks and uncertainties. For a discussion of such risks and uncertainties, which could cause actual results to differ from those contained in the forward-looking statements, see "Risk Factors" in the Company's Annual Report or Form 10-K for the most recently ended fiscal year.