Mentor Graphics Joins Multicore Association as an Executive Board Member

WILSONVILLE, Ore., November 6, 2007 - Mentor Graphics Corporation (NASDAQ: MENT) today announced that it has joined the Multicore Association consortium as an executive board member. The Multicore Association is a global non-profit organization focused on developing standards that help speed time to market for products that involve multicore implementations.

“As a company that is deeply entrenched in the industry, Mentor Graphics makes a notable addition to the Multicore Association’s Executive Board,” said Markus Levy, Multicore Association president. “Mentor’s experience in this industry will help guide this consortium in delivering the most beneficial standards for multicore applications.”

The Multicore Association supports the multicore ecosystem including vendors of processor IP, multicore chips, operating systems, hardware design and software development tools, as well as application and system developers. Currently, the organization is set up with two working groups: Communications API (CAPI) and Debug API, and includes a comprehensive roadmap for support of features such as a resource management API and task management API.

“As the standards sanctioned by Multicore Association go mainstream, our customers will benefit by improved interoperability between operating systems, tools and hardware to fully leverage multicore technologies,” said Neil Henderson, general manager, Mentor Graphics’ Embedded Systems Division. “By implementing industry supported standards such as the Multicore Communications API (MCAPI), the Mentor Graphics Nucleus® OS platform will facilitate integration with software and hardware solutions from the broad ecosystem, accelerating time to market for embedded systems.”

“With a decade of experience in the integration and debug of multicore systems, we look forward to lending our expertise to the Multicore Association,” said Serge Leef, general manager, System-Level Engineering Division, Mentor Graphics. “Over the years our Seamless® customers have driven countless enhancements to our multicore debug technology, which can now be leveraged by the Multicore Association’s standards efforts.”

For more information about the Nucleus OS, please contact Mentor Graphics’ embedded systems division at 800-468-6853 or email embedded_info@mentor.com . For more information on the Seamless hardware/software integration tool, please call 800-468-6853 or email seamless_info@mentor.com . To learn more about Multicore Association, go to www.multicore-association.org .

About Mentor Graphics
Mentor Graphics Corporation (Nasdaq: MENT) is a world leader in electronic hardware and software design solutions, providing products, consulting services and award-winning support for the world’s most successful electronics and semiconductor companies. Established in 1981, the company reported revenues over the last 12 months of over $825 million and employs approximately 4,300 people worldwide. Corporate headquarters are located at 8005 S.W. Boeckman Road, Wilsonville, Oregon 97070-7777. World Wide Web site: http://www.mentor.com/.

Mentor Graphics, Nucleus and Seamless are registered trademarks of Mentor Graphics Corporation. All other company or product names are the registered trademarks or trademarks of their respective owners.

For more information, please contact:
Karel Rasovsky
Mentor Graphics
503.685.7814
karel_rasovsky@mentor.com

Sonia Harrison
Mentor Graphics
503.685.1165
sonia_harrison@mentor.com