SYNPLICITY AND LATTICE SEMICONDUCTOR EXPAND STRATEGIC RELATIONSHIP
Companies Extend Their Multi-Year OEM Agreement

HILLSBORO, Ore. and SUNNYVALE, Calif., May 27, 2003 — Synplicity Inc. (Nasdaq: SYNP), a leading supplier of software for the design and verification of semiconductors, and Lattice Semiconductor Corporation, (Nasdaq: LSCC), the industry's leading supplier of in-system programmable devices, today announced the renewal of their long-term strategic relationship by expanding the existing OEM agreement between the two companies. Under the terms of the multi-year agreement expansion, Synplicity will continue to provide Lattice customers with access to its industry-leading FPGA synthesis tool as well as upgrade current users of the Synplify Lite® software to a full version of the Synplify® software. As a result, designers using Lattice Semiconductor devices will have access to the increased performance and quality of results benefits offered by Synplicity’s FPGA synthesis software. As part of this OEM agreement, Lattice Semiconductor and Synplicity will continue to jointly develop the Synplify software and Lattice Semiconductor will market and distribute the software within its development system.

"It is gratifying to be renewing our OEM agreement with Lattice Semiconductor, who has continued to deliver industry-leading CPLD and FPGA products to the marketplace,” said Bernard Aronson, president and CEO of Synplicity. “We look forward to strengthening this relationship through our continued joint technology development. From our increased efforts with Lattice, we believe our mutual customers will continue to see significant improvements in the performance and quality of results they can obtain in their Lattice devices.”

"We are pleased to be extending our long-term partnership with Synplicity,” said Steve Laub, president of Lattice. “For designers, quality of results is an important consideration when choosing an FPGA synthesis product and we believe our long-term relationship with Synplicity has provided our mutual customers with an excellent solution to achieve their design goals. With the latest release of the Synplify software, quality of results with Lattice’s FPGAs achieves outstanding performance.”

With today’s announcement, Lattice will continue to bundle current versions of Synplicity’s Synplify synthesis software into Lattice Semiconductor’s development systems, enabling customers to achieve excellent quality of results for their devices. Additionally, with this agreement, Lattice customers will have wider access to full versions of the Synplify software.

About Lattice Programmable Products
Lattice’s broad programmable product portfolio encompasses FPGA, CPLD and Mixed Signal PLDs. These products include its unique ispXPGA™ and ispXPLD™ families featuring non-volatile, infinitely reconfigurable ispXP™ technology, its ORCA® families of high performance FPGAs and Field Programmable System Chips (FPSCs) and its ispMACH® CPLD families.

About Synplicity’s Synplify Software
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.

Pricing and Availability
Users under current maintenance support of the multi-vendor Synplify and Synplify Pro software will have immediate access to the enhanced quality of results for Lattice FPGAs in today’s Synplify 7.3 release. The distribution of the Synplify 7.3 software to Lattice OEM customers will be available in July as an update release to Lattice’s ispLEVERä design tool suite version 3.0.

About Lattice Semiconductor Corporation
Oregon-based Lattice Semiconductor Corporation designs, develops and markets the broadest range of Field Programmable Gate Arrays (FPGAs), Field Programmable System Chips (FPSCs) and high-performance ISPTM programmable logic devices (PLDs). Lattice offers total solutions for today's system designs by delivering the most innovative programmable silicon products that embody leading-edge system expertise.

Lattice products are sold worldwide through an extensive network of independent sales representatives and distributors, primarily to OEM customers in the fields of communication, computing, computer peripherals, instrumentation, industrial controls and military systems. Company headquarters are located at 5555 NE Moore Court, Hillsboro, Oregon 97124 USA; Telephone 503-268-8000, FAX 503-268-8037. For more information on Lattice Semiconductor Corporation, access our World Wide Web site at http://www.latticesemi.com.

About Synplicity
Synplicity Inc. (Nasdaq: SYNP) is a leading provider of software products that enable the rapid and effective design and verification of semiconductors used in networking and communications, computer and peripheral, consumer and military/aerospace electronics systems. Recognizing the company's industry-leading position, since the year 2000 Dataquest has named Synplicity as the #1 provider of PLD synthesis tools, announcing a 54 percent market share in 2001, the last year for which data is available. Synplicity leverages its innovative logic synthesis, physical synthesis and verification software solutions to improve performance and shorten development time for complex programmable logic devices, application specific integrated circuits (ASICs), structured ASICs and system-on-chip (SoC) integrated circuits. The company’s fast, easy-to-use products offer high quality of results, support industry-standard design languages (VHDL and Verilog) and run on popular platforms. As of March 31, 2003, Synplicity employed over 260 people in its 20 facilities worldwide. Synplicity is headquartered in Sunnyvale, Calif. For more information on Synplicity, visit http://www.synplicity.com.

###

Synplicity, Synplify, Synplify Lite and Synplify Pro are registered trademarks of Synplicity Inc. Lattice Semiconductor Corporation, L (& design), Lattice (& design), in-system programmable, ISP, ispLEVER, ispMACH, ORCA, ispXP, ispXPLD, ispXPGA and specific product designations are either registered trademarks or trademarks of Lattice Semiconductor Corporation or its subsidiaries in the United States and/or other countries. All other names mentioned herein are the trademarks or registered trademarks of their respective companies.