Lattice Semiconductor Updates Guidance For Third Quarter

HILLSBORO, OR – September 11, 2008 - Lattice Semiconductor (NASDAQ: LSCC) today announced its business update for the third quarter of 2008.

• Third quarter revenue is now expected to be down approximately 1% to 3% sequentially, however the Company is experiencing strong sequential growth in our FPGA product line when compared to the similar period in the prior quarter. This is a revision from previous guidance of flat to down three percent sequentially.

• The Company’s guidance does not include the effects of any restructuring charges or other accounting adjustments, if any, that may be required by actions taken in connection with the formulation of a new cost structure as discussed by the Company in its press release regarding its second quarter financial results issued on July 24, 2008.

No conference call will be held in conjunction with this guidance update. Additional information related to the third quarter will be available when the Company reports its third quarter results on October 23, 2008.

About Lattice Semiconductor

Lattice Semiconductor Corporation provides the industry’s broadest range of Programmable Logic Devices (PLD), including Field Programmable Gate Arrays (FPGA), Complex Programmable Logic Devices (CPLD), Mixed-Signal Power Management and Clock Generation Devices, and industry-leading SERDES products.

Lattice continues to deliver “More of the Best” to its customers with comprehensive solutions for system design, including an unequaled portfolio of high-performance, non-volatile and low-cost FPGAs.

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. For more information, visit http://www.latticesemi.com