LatticeECP, LatticeEC FPGAs Among EDN'S "Hot 100 Products of 2004"

- Low Cost, High Performance FPGAs Continue To Garner Industry And Editorial Recognition -

HILLSBORO, OR - DECEMBER 21, 2004 - Lattice Semiconductor Corporation (NASDAQ: LSCC) today announced that its LatticeECP" and LatticeEC" FPGA families are among the products honored by EDN magazine in its December 17 "Hot Products of 2004" feature. On December 20, EE Times recognized the ECP and EC devices as "Ultimate Products," ranking first in the programmable logic category.

Calling the products chosen "compelling," with "dazzling features," the editors of EDN note, "Of the thousands (of products) that manufacturers announce each year and the hundreds that EDN reports on, only about 100 hot products make our readers really sit up and take notice."

"Our LatticeECP and LatticeEC FPGAs continue to attract interest and win praise from industry publications and analysts," said Stan Kopec, Lattice vice president of corporate marketing. "Recognition by EDN, one of our industry's most respected publications, is particularly welcome. More importantly, these unique low-cost, high performance FPGAs are creating broad interest among our customers, which is the best recognition of all," Kopec concluded.

About the LatticeECP and LatticeEC FPGA Families
The LatticeECP-DSP" 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 Lattice Semiconductor
Lattice Semiconductor Corporation designs, develops and markets the broadest range of Field Programmable Gate Arrays (FPGA), Field Programmable System Chips (FPSC) and high-performance ISP" Programmable Logic Devices (PLD), including Complex Programmable Logic Devices (CPLD), Programmable Analog Chips (PAC"), and Programmable Digital Interconnect (GDX"). Lattice also offers industry leading SERDESproducts. Lattice is "Bringing the Best Together" with comprehensive solutions for today's system designs, delivering 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 communications, computing, computer peripherals, instrumentation, industrial controls and military systems. 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), LatticeECP, LatticeECP-DSP, LatticeEC, GDX, ISP, PAC 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.

For more information contact:

Brian Kiernan, Corporate Communications Manager
Lattice Semiconductor Corporation
brian.kiernan@latticesemi.com
voice: (503) 268-8739
fax: (503) 268-8193