SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of

The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported)

March 7, 2006

Lattice Semiconductor Corporation

(Exact name of registrant as specified in its charter)

5555 N. E. Moore Court

Hillsboro, Oregon 97124-6421

(Address of principal executive offices, including zip code)

(503) 268-8000

(Registrant’s telephone number, including area code)

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

o  Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o  Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o  Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 7.01.  Regulation FD Disclosure.

On March 7, 2006, Lattice Semiconductor Corporation posted on its website a business update for the first quarter of the fiscal year 2006.  A copy of the business update is furnished as Exhibit 99.1 to this report.

The information in this Item 7.01 and in Exhibit 99.1 shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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EXHIBIT INDEX

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Exhibit 99.1

News Release

For more information contact:

Jan Johannessen

Chief Financial Officer

Lattice Semiconductor Corporation

(503) 268-8000

LATTICE SEMICONDUCTOR RAISES

FIRST QUARTER GUIDANCE

                HILLSBORO, OR — MARCH 7, 2006 — Lattice Semiconductor (NASDAQ: LSCC) today announced its business update for the first quarter of 2006.

•                  First quarter revenue is expected to grow 4%-5% sequentially, as compared to previous guidance of 2%-5%;

•                  Other income is expected to be approximately $3.5 million, an increase over previous guidance due to repurchase of convertible debt.

                No conference call will be held in conjunction with this guidance update.

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^â) and Programmable Digital Interconnect Devices (ispGDX^â).  Lattice also offers industry leading SERDES products.

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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

The foregoing business update contains forward-looking statements.  Lattice believes the factors identified below in connection with each such statement could cause actual results to differ materially from the forward-looking statements.

Estimates of future revenue are inherently uncertain due to the high percentage of quarterly “turns” business, as well as such factors as pricing pressures, competitive actions, the demand for our products, and our ability to supply products to customers in a timely manner.

In addition to the foregoing, other factors that may cause actual results to differ materially from the forward-looking statements herein include the Securities and Exchange Commission’s informal inquiry and any resulting actions, developments in our pending securities class action litigation, the Company’s dependencies on its silicon wafer suppliers, technological and product development risks, and other risks that are described from time to time in our filings with the Securities and Exchange Commission.  The Company does not intend to update or revise any forward-looking statements, whether as a result of events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.

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Lattice Semiconductor Corporation, Lattice (& design), L (& design), ispGDX, ispPAC 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.

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