SUNNYVALE, Calif., Apr 30, 2004 (BUSINESS WIRE) — Monolithic
System Technology, Inc. (MoSys) (Nasdaq:MOSY) announces that it will
release its first quarter financial results for the period ending
March 31, 2004, on Thursday, May 6, after the market closes. Following
the release, the Company will host a live audio webcast and conference
call at 5:15 p.m. Eastern Time.

President and Chief Executive Officer Fu-Chieh Hsu and Chief
Financial Officer Mark Voll will discuss the company’s earnings and
operations on the call. Investors and other interested parties may
listen to the live webcast by visiting the investor relations section
of the MoSys Web site at www.mosys.com. A webcast replay will also be
available on the company’s Web site.

ABOUT MOSYS AND 1T-SRAM

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
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’ Web site at https://dev-mosys-web-04-19.pantheonsite.io.

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.

SOURCE: Monolithic System Technology, Inc.

MoSys, Sunnyvale
Mark Voll, 408-731-1846
markv@mosys.com
or
Shelton IR
Beverly Twing, 972-239-5119, ext. 126
btwing@sheltongroup.com