For Immediate Release

Synplicity Announces Support for Actel’s Low-Cost ProASIC3 and ProASIC3E FPGAs 

Synplicity to Provide Optimal Synthesis and Design Support for New Line of Flash-Based FPGAs Aimed at the Value-Based Market

SUNNYVALE, Calif., January 24, 2005 — Underscoring its strong partnerships with industry-leading silicon vendors, Synplicity Inc. (Nasdaq: SYNP), a leading supplier of software for the design and verification of semiconductors, today announced its FPGA synthesis software, Synplify® and Synplify Pro®, now provide optimized support for the new low-cost Actel ProASIC3 and ProASIC3E device families. With this announcement, Synplicity continues to provide designers with software tools that offer significant area and timing optimization benefits. The area savings customers can expect to see using Synplicity’s synthesis technology in the design of ProASIC3/E devices can often allow them to use a smaller, less costly device.

“Because Actel’s ProASIC3/E devices are specifically developed for the value-based, high-volume market, it is imperative that we are able to provide our customers with best-in-class tools capable of fully exploiting our significant cost advantage,” said Dennis Kish, vice president of marketing at Actel. “For this reason, we continue to rely on Synplicity’s true timing-driven synthesis technology to support our latest generation of devices with an unmatched reduction in area and cost, as well as superior quality of results.”

In addition to optimized area/cost reduction, Synplicity’s Synplify and Synplify Pro synthesis software support ProASIC3/E FPGAs with industry-leading quality of results (QoR) for timing performance and technical support. Algorithmic QoR enhancements in the Synplify software enable designers to increase productivity while optimizing the timing performance of their ProASIC3/E devices.

“Actel's new flash-based, low-cost, ProASIC3/E FPGAs are attracting customers that previously would not have considered FPGAs due to cost,” said Andy Haines, vice president of marketing at Synplicity. “The true timing-driven synthesis technology in our Synplify products allows designers to automatically optimize for area once their timing requirements have been met, making it an ideal match for customers using ProASIC3/E devices in a wide range of applications. We believe customers incorporating our design capability along with Actel’s ProASIC3/E devices will be able to achieve the highest possible performance goals.”

About Synplicity’s FPGA Synthesis Solutions
Synplicity’s Synplify software helps programmable logic designers rapidly achieve aggressive performance objectives. The Synplify software takes designs written in VHDL or Verilog as input, and compiles, optimizes and maps them into efficient, high-performance netlists for all leading CPLD and FPGA devices. The Synplify Pro software offers high quality of results and fast runtimes along with an expanded feature set optimized to increase performance and productivity for today’s complex programmable devices.

About Synplicity
Synplicity® Inc. (Nasdaq: SYNP) is a leading supplier of innovative synthesis, verification and physical implementation software solutions that enable the rapid and effective design and verification of semiconductors. Synplicity’s high-quality, high-performance tools significantly reduce costs and time-to-market for FPGA, structured/platform ASIC and cell-based/COT ASIC designers. The company’s underlying Behavior Extracting Synthesis Technology® (BEST™), which is embedded in its logical, physical and verification tools, and has led to Synplicity’s top position in FPGA synthesis, now provides the same fast runtimes and quality of results to ASIC and COT customers. The company’s fast, easy-to-use products support industry standard design languages (VHDL and Verilog) and run on popular platforms. Synplicity employs over 280 people in its 20 facilities worldwide. Synplicity is headquartered in Sunnyvale, California. For more information visit http://www.synplicity.com.

Forward-Looking Statements
This press release contains forward-looking statements including, but not limited to, statements regarding the performance and achievements of Synplicity’s Synplify and Synplify Pro in connection with their support of certain Actel software products. In some cases, you will be able to identify forward-looking statements by terminology such as “may,” “will,” “should,” “expects,” “believes” or the negative of these terms or other comparable terminology. These statements are only predictions and involve known and unknown risks, uncertainties and other factors that may cause the actual achievements or performance of the Synplify and Synplify Pro to differ materially from the forward-looking statements, including the performance and quality of Synplicity’s products relative to other comparable software (both individually and used in conjunction with third party products), latent defects, design flaws or other problems with the Synplify and Synplify Pro and the growth and changing technical requirements in the programmable semiconductor market. For additional information and considerations regarding the risks faced by Synplicity, see its annual report on Form 10-K for the year ended December 31, 2003 as filed with the Securities and Exchange Commission, as well as other periodic reports filed with the SEC from time to time, including its quarterly reports on Form 10-Q. Although Synplicity believes that the expectations reflected in the forward-looking statements are reasonable, Synplicity cannot guarantee the future performance or achievements of its software. In addition, neither Synplicity nor any other person assumes responsibility for the accuracy or completeness of these forward-looking statements. Synplicity disclaims any obligation to update information contained in any forward-looking statement.

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Synplicity, Behavior Extracting Synthesis Technology, Synplify and Synplify Pro are registered trademarks of Synplicity Inc. BEST is a trademark of Synplicity Inc. All other brands or products are the trademarks or registered trademarks of their owners.

Synplicity Contact:
Jeff Garrison
Synplicity, Inc.
408-215-6000
jeff@synplicity.com

Synplicity PR Contact:
Steve Gabriel
Porter Novelli
408-369-1500 x627
steve.Gabriel@porternovelli.com