LatticeEC FPGA is Chip of Choice for Quad HDLC PCI Card

HILLSBORO, OR - August 16, 2005 - Lattice Semiconductor Corporation (NASDAQ: LSCC) today announced that CASE Communications has selected the LatticeEC™ FPGA for use in the design of a QUAD HDLC PCI Card. The end product is the Tunneling Router LR6000-HOT™ (HDLC Over TCP), which allows legacy protocols to be transported over IP, replacing expensive digital circuits. The LatticeEC FPGA-based PCI card is being used for duplicate HDLC controllers and PCI interface, including full master/slave with 8 DMA controllers.

"We decided to develop our own card because existing cards either were too expensive or unable to meet our application requirements either in functionality or performance," said Roger Holden, Development Director for CASE. "Then we considered joint development with other companies, but that proved too expensive. Off the shelf chips were evaluated, but they had limitations that were not acceptable for our project. At that point we knew the best solution was an FPGA, and we established these selection criteria: low cost; suitable packages; sufficient on-board memory; PCI interface; live at power up; and a sophisticated simulation and design compiler tool suite at a reasonable cost.

"We contacted several FPGA vendors," Holden continued. "Only Lattice and their distributor WBC were able to provide accurate pricing for various volumes of devices immediately, and confirm by fax the same day. That kind of responsiveness was very important to us. The LatticeEC FPGA satisfied all of our selection criteria, and was chosen for our project. The Lattice device and the card have performed flawlessly for us," Holden concluded.

"As the performance of FPGAs continues to increase and device cost falls, more and more customers are moving from fixed logic or custom devices and turning to programmable logic solutions," said Stan Kopec, Lattice vice president of corporate marketing. "Our LatticeEC FPGA is a perfect example of a high performance, low cost device - a compelling value for our customers."

About the LatticeECP and LatticeEC FPGA Families

The LatticeECP™ and LatticeEC FPGA device families are architected to provide the most optimized feature sets combined with the lowest total solution costs of any FPGAs. The new LatticeECP-DSP™ products, targeted for high-performance DSP applications, provide up to a 50% performance and 75% logic utilization improvement over other low cost solutions when implementing common DSP functions. The LatticeEC FPGA product family, targeted for general-purpose FPGA applications, is a precise and targeted response to the market's explosive demand for low cost, architecturally streamlined logic solutions. Through advanced 130nm silicon technology, an optimized architecture and proprietary circuit design, the new Lattice devices lower total solution costs by up to 30% to 50% compared with existing FPGA solutions, and are expected to broaden the adoption of FPGAs within the $20 billion ASIC marketplace.

About CASE Communications

CASE Communications is a product developer and provider of networking solutions and services. CASE specializes in high performance next generation Linux-based routers; broadband access; voice and data integration; and high quality services. CASE provides product delivery and field service for the United Kingdom. Outside the UK, CASE supplies products and services through its partners worldwide. For more information about CASE Communications, visit http://www.casecomms.com/

About Lattice Semiconductor

Lattice Semiconductor Corporation provides the industry's broadest range of Field Programmable Gate Arrays ( FPGA) and Programmable Logic Devices ( PLD), including Field Programmable System Chips ( FPSC), Complex Programmable Logic Devices ( CPLD), Programmable Mixed-Signal Products ( ispPAC® ) and Programmable Digital Interconnect Devices ( ispGDX® ). Lattice also offers industry leading SERDES products.

Lattice is "Bringing the Best Together" with comprehensive solutions for system design, including an unequaled portfolio of non-volatile programmable devices that deliver instant-on operation, security and "single chip solution" space savings.

Lattice products are sold worldwide through an extensive network of independent sales representatives and distributors, primarily to OEM customers in communications, computing, industrial, consumer, automotive, medical and military end markets. Company headquarters are located at 5555 NE Moore Court, Hillsboro, Oregon 97124-6421, USA; telephone 503-268-8000, fax 503-268-8037. For more information about Lattice Semiconductor Corporation, visit http://www.latticesemi.com

Statements in this news release looking forward in time are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Investors are cautioned that forward-looking statements involve risks and uncertainties including market acceptance and demand for our new products, our dependencies on our silicon wafer suppliers, the impact of competitive products and pricing, technological and product development risks and other risk factors detailed in the Company's Securities and Exchange Commission filings. Actual results may differ materially from forward-looking statements.

# # #

Lattice Semiconductor Corporation, Lattice (& design), L (& design), ispGDX, ispPAC, LatticeEC, LatticeECP, LatticeECP-DSP 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.

GENERAL NOTICE: Other product names used in this publication are for identification purposes only and may be trademarks of their respective holders.