Lattice Semiconductor Clock Generator Selected Twice as "Ultimate Product" by EE Times Editors, Readers

- ispClock5500 Ranked Among Top Ten In Both Analog IC And Programmable Logic Product Categories -

HILLSBORO, OR - October 11, 2004 - Lattice Semiconductor Corporation (NASDAQ: LSCC) today announced that the editors and readers of EE Times have selected the ispClock5500 as an "ultimate product." The ispClock™ device was the only product, among seventy nominated, to be recognized in more than one category.

According to Executive Editor Marty Gold, "Our expert editors select 10 of the most significant products introduced during the quarter - in each of seven categories - and then, using an electronic balloting mechanism, we submit these products to selected, qualified readers of EE Times and eeProductCenter. Readers rate these products on 'technical significance' and 'likelihood of use.'" Gold added that over 1300 readers participated.

Readers Praise ispClock Devices
Readers were also invited to submit comments with their votes. "I look forward to using these in my next design to simplify the current tangled web of clocks and logic," wrote one reader. Another reader observed, "Unprecedented convenience in designing clock networks." Yet another noted, "Programmable skew can reduce overall PCB costs by eliminating serpentine trace layouts and possible noise." Another reader echoed that view: "By using this product, we will simplify the design and save space on the PCB."

"Recognition of our programmable mixed signal ispClock product by the editors and readers of EE Times is extremely gratifying," said Stan Kopec, Lattice vice president of marketing. "Most importantly, the unique capabilities of these products are generating widespread interest and early design success with our customers. To be voted an ultimate product in both the Analog IC and Programmable Logic categories speaks to both the technical importance and versatility of the ispClock devices."

The ispClock5500 family, comprised of the 10-output ispClock5510 and 20-output ispClock5520, combines a high- performance clock generator with a flexible, Universal Fan-out Buffer. The on-chip clock generator can provide up to 5 clock frequencies, ranging from 10MHz to 320MHz, using a high-performance PLL and clock multiply and divide facilities. The Universal Fan-out Buffer can drive up to 20 clock nets using either single-ended or differential signaling, with individual output control for improved signal and timing integrity.

Clock Network Management Redefined
Traditional clock chips essentially provide single point solutions for a portion of a clock network. Designers, for each clock network, must consequently select different clock devices from a wide variety of clock chips from different manufacturers. Once the devices are selected, designers must then use external resistors to match the clock network trace impedances with the clock driver output impedance, and use snaking circuit board patterns to match the clock network trace lengths. In contrast, the ispClock devices not only integrate the functionality of a wide variety of clock devices such as clock generators, fan-out buffers, translators and zero-delay buffers, but they also support programmable features that compensate for differences in clock network trace impedances and trace lengths.

Ultimately, the unique features of the ispClock devices provide a number of very tangible benefits to their users: reduced time-to-market and risk reduction derived from their in-system programmable approach that supports precise clock tuning, even after the devices are soldered onto the printed circuit board (PCB); reduced PCB size and cost through their high integration; enhanced manufacturing and end-use flexibility through multiple configuration profiles stored on the device; and improved system reliability and performance through precision frequency and skew control.

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 SERDES products. 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), GDX, ISP, ispClock, 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