SUNNYVALE, Calif.–(BUSINESS WIRE)–Jul. 20, 2009–
MoSys, Inc., (NASDAQ: MOSY), a leading provider of high-density memory
and high-speed interconnect intellectual property (IP) for the consumer,
communications, networking, storage and high-performance computing
markets, today announced it will host a conference call on Tuesday, July
28, 2009
at 1:30 p.m. Pacific Time (4:30 p.m. Eastern Time) to discuss
its second quarter 2009 financial results. The Company also announced
that Jim Sullivan, Chief Financial Officer, will present at the CapStone
Investments Third Annual Small Cap Investor Conference on Thursday, July
30, 2009

Second Quarter 2009 Conference Call /
Webcast Information

Following the announcement of the Company’s second quarter 2009
financial results after the market close on July 28, 2009, Len Perham,
MoSys’ President and Chief Executive Officer, and Jim Sullivan, Chief
Financial Officer, will host a live conference call and Webcast.
Analysts and investors are invited to dial into the conference call
using the following information:

Date: Tuesday, July 28, 2009

Time: 4:30 p.m. Eastern Time (1:30 p.m. Pacific Time)

Conference Call Number: 1-888-713-4215

International Call Number: 1-617-213-4867
Pass Code: 65553669

The conference call replay will be available for 48 hours, beginning two
hours after the call. The replay dial-in number is 1-888-286-8010, and
the pass code is 97669678. International callers should dial
1-617-801-6888 and enter the same pass code at the prompt. Additionally,
this conference call will be broadcast live over the Internet and can be
accessed by all interested parties on the Investor Relations section of
the Company’s website at

CapStone Investments Third Annual
Small Cap Investor Conference

Jim Sullivan, Chief Financial Officer, will present at the CapStone
Investments Third Annual Small Cap Investor Conference on Thursday, July
30, 2009
at the Hyatt Regency Hotel in Milwaukee, Wisconsin. Portfolio
managers and analysts who wish to request a meeting with management
should contact Ryan McGaver at

About MoSys, Inc.

Founded in 1991, MoSys (NASDAQ: MOSY), develops, markets and licenses
differentiated embedded memory and high speed parallel and serial
interface IP for advanced SoC designs. MoSys’ patented 1T-SRAM and
1T-FLASH memory technologies offer a combination of high density, low
power consumption, high speed and low cost advantages that are unmatched
by other available memory technologies for a variety of home
entertainment, mobile consumer, networking and storage applications.
MoSys’ silicon-proven interface IP portfolio includes DDR3/2 Combo PHYs,
as well as SerDes IP that support data rates from 1 Gigabit per second
(Gbps) to 10 Gbps, across a wide range of standards, including
PCI-Express, XAUI, SATA, USB and 10G KR. MoSys is headquartered at 755
N. Mathilda Avenue
, Sunnyvale, California 94085. More information is
available on MoSys’ website at

MoSys and 1T-SRAM are registered trademarks of MoSys, Inc. 1T-FLASH ™
is a trademark of MoSys, Inc.

Source: MoSys, Inc.

MoSys, Inc.
Jim Sullivan, CFO, +1 408-731-1800
Beverly Twing, Sr. Acct. Manager, +1 972-239-5119 x126