SUNNYVALE, Calif., Sept. 20 /PRNewswire-FirstCall/ — MoSys, Inc.
(Nasdaq: MOSY), the industry’s leading provider of high-density system-on-chip
(SoC) memory and analog/mixed-signal IP, today announced that it has appointed
Michael J. Maia as its vice president of marketing, effective September 17,
2007. Mr. Maia is responsible for the company’s strategic marketing, product
marketing, communications and business development initiatives.

Mr. Maia brings more than 25 years of experience to MoSys. Prior to
joining the company, he was co-founder, vice president and general manager of
PortalPlayer, which pioneered hard disk drive-based and high capacity
flash-based portable media players. Mr. Maia was responsible for worldwide
sales and marketing of PortalPlayer’s semiconductor, firmware and software
solutions. Previously, he was senior director of marketing at National
Semiconductor Corp., vice president of marketing at Cirrus Logic, Inc., and
served in various capacities at Trident Microsystems, including vice president
of sales and marketing.

Mr. Maia holds a bachelor of science degree in marketing from San
Francisco State University and a master’s degree in business administration
from St. Mary’s College.

“Michael is a seasoned business executive with extensive global experience
in the semiconductor industry,” said Chet Silvestri, President and CEO of
MoSys. “He has an enviable track record in business expansion, and we’re
pleased that he has agreed to join our team and help drive the growth of our
business.”

Mr. Maia was granted a stock option to purchase 250,000 shares of MoSys’
common stock at an exercise price of $6.50, equal to MoSys’ closing price on
September 17, 2007 as a new employee hiring inducement option grant pursuant
to NASDAQ Marketplace Rule 4350(i)(l)(A)(iv).

“This is an incredible opportunity to work with the world’s largest wafer
fabs, integrated device manufacturers (IDMs), and fabless semiconductor
companies, which make such a significant impact on the consumer electronics
and computing marketplaces,” Maia said. “My goal is to continuously build new
value for our customers by providing innovative intellectual property and
system partitions.”

ABOUT MOSYS, INC.

Founded in 1991, MoSys (Nasdaq: MOSY), develops, licenses and markets
innovative memory and analog/mixed-signal 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, making them
ideal for embedding large memories in System on Chip (SoC) designs. MoSys’
licensees have shipped more than 110 million chips incorporating 1T-SRAM
embedded memory technologies, demonstrating excellent manufacturability in a
wide range of silicon processes and applications. MoSys is headquartered at
755 N. Mathilda Avenue, Sunnyvale, California 94085. More information is
available on MoSys’ website at https://dev-mosys-web-04-19.pantheonsite.io.

1T-SRAM and 1T-FLASH are registered trademarks of MoSys, Inc.

Sally Pedreiro

MoSys, Inc.

Sunnyvale, CA

+1 (408) 731-1832

spedreiro@mosys.com

Beverly Twing, Acct. Manager
Shelton IR
+1 (972) 239-5119 x126
btwing@sheltongroup.com

SOURCE MoSys, Inc.

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