Mentor Graphics Nucleus POSIX Software Adds Support for Networking Applications

WILSONVILLE, Ore., January 16, 2007 - Mentor Graphics Corporation (NASDAQ: MENT) today announced that the new version of the Nucleus® POSIX software now includes support for networking applications. Developers of embedded network applications who need a POSIX-compliant application programming interface (API) can use the Nucleus POSIX software in combination with the Nucleus NET TCP/IP networking stack in order to create POSIX-compliant applications.

Many companies have designed their applications around the universal system APIs provided by the IEEE 1003.13-2003 Standard Application Environment Profiles. Using standard APIs allows these companies to easily migrate to a different operating system (OS) if the need arises. This version of the Nucleus POSIX software gives these companies the option to quickly and easily migrate to the Nucleus OS.

“Unlike the market for operating systems for PCs, the embedded OS market is highly competitive. Companies will switch operating systems with a new design that places additional requirements on the OS. With the Nucleus POSIX software, customers can move their applications from their legacy operating system to the Nucleus OS with minimal investment,” said Glen Johnson, product marketing manager, Embedded Systems Division, Mentor Graphics.

The Nucleus POSIX software includes the basic POSIX library, along with the POSIX Asynchronous I/O library, POSIX File System Library, POSIX Run-Time library, and POSIX Net library. Nucleus products supported under the Nucleus POSIX software include the Nucleus PLUS RTOS, Nucleus FILE file management software, the Nucleus File Abstraction Layer (FAL) software, the Nucleus MMU memory management software, the Nucleus USB software, the Nucleus Inter-Process Communication (IPC) software, the Nucleus DDL dynamic download software, and now the Nucleus NET stack. Together, the Nucleus POSIX software and the Nucleus NET stack give developers a complete, integrated networking solution in a well-known programmable environment.

Pricing and Availability
The Nucleus embedded software is sold in source code format and without royalty fees. Licenses for the Nucleus POSIX software begin at U.S. $3,495.00. For more information, please contact Mentor Graphics embedded systems division at 800-468-6853 or embedded_info@mentor.com.

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 $750 million and employs approximately 4,100 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 and Nucleus 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:
Jennifer Tanveer
Mentor Graphics
251.208.3400 ext 3415
jennifer_tanveer@mentor.com

Sonia Harrison
Mentor Graphics
503.685.1165
sonia_harrison@mentor.com