Rambus Signs Memorandum of Understanding With Spansion

Rambus Inc. (Nasdaq:RMBS), one of the world´s premier technology
licensing companies specializing in high-speed memory architectures

today announced that it has signed an agreement for DDR engineering
services and a memorandum of understanding for future development of
MirrorBit(R) Flash memory solutions with Spansion(R) Inc.
(Nasdaq:SPSN), the world´s largest pure-play provider of Flash memory
solutions.

Initially, Rambus will provide Spansion with DDR engineering
services in support of accelerating time-to-market for robust

high-volume Spansion products. Services include signal integrity
simulations, system and package design, and precision in-system
voltage and timing margining.

"Flash memory content in electronic devices continues to grow

enabling increasingly innovative and differentiated consumer
electronics products," said Ali Pourkeramati, executive vice
president, Applications and Platform Engineering, at Spansion. "Our
deep Flash memory expertise coupled with Rambus´ signal integrity and
memory interface experience will provide an enhanced opportunity to
create the next generation of advanced MirrorBit Flash memory
solutions."

"With its preeminent expertise in Flash memory, Spansion is
ideally positioned to deliver the breakthrough solutions needed by
future consumer electronics products," said Martin Scott, senior vice
president of Engineering at Rambus Inc. "Together, we look forward to
making significant advancements in the capabilities of Flash memory
systems."

Rambus and Spansion signed a patent license agreement in early
2007. With a primary focus on the integrated Flash memory market

Spansion solutions are incorporated into electronic products from
Original Equipment Manufacturers (OEMs), including the world´s top ten
handset, consumer electronics and automotive OEMs around the world.

Safe Harbor Statement

This release contains forward-looking statements under the Private
Securities Litigation Reform Act of 1995. Such forward-looking
statements are based on current expectations, estimates and
projections about the Company´s industry, management´s beliefs, and
certain assumptions made by the Company´s management. Actual results
may differ materially. Our business generally is subject to a number
of risks which are described more fully in our SEC filings including
our 10-K and 10-Qs.

About Rambus Inc.

Rambus is one of the world´s premier technology licensing
companies specializing in the invention and design of high-speed
memory architectures. Since its founding in 1990, the Company´s
patented innovations, breakthrough technologies and renowned
integration expertise have helped industry-leading chip and system
companies bring superior products to market. Rambus´ technology and
products solve customers´ most complex chip and system-level interface
challenges enabling unprecedented performance in computing

communications and consumer electronics applications. Rambus licenses
both its world-class patent portfolio as well as its family of
leadership and industry-standard interface products. Headquartered in
Los Altos, California, Rambus has regional offices in North Carolina

India, Germany, Japan, Korea and Taiwan. Additional information is
available at www.rambus.com.

Rambus and the Rambus logo are registered trademarks of Rambus
Inc. All other trade names are the service marks, trademarks, or
registered trademarks of their respective owners.

Spansion(R), the Spansion Logo(R), MirrorBit(R), ORNAND(TM)

ORNAND2(TM), HD-SIM(TM) and combinations thereof, are trademarks of
Spansion LLC. Spansion, the Spansion Logo and MirrorBit are registered
in the US and other countries. Other names used are for informational
purposes only and may be trademarks of their respective owners.