UNITED STATES
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)

October 11, 2005

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 2.02.  Results of Operations and Financial Condition.

On October 11, 2005, Lattice Semiconductor Corporation (the “Company”) issued a press release announcing that it expects its revenue for its recently completed third fiscal quarter of 2005 to come in at the high end of its previously announced guidance of
1% - 2% sequential revenue growth. A copy of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-K.

The information in this Item 2.02, in Item 9.01 hereof 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 a filing.

The foregoing statement regarding the Company’s expected revenue for its recently completed third fiscal quarter is a forward-looking statement within the meaning of the federal securities laws. Actual, final results could vary because of any accounting adjustments made during the quarterly close.

Item 9.01.  Financial Statements and Exhibits.

(c) Exhibits.

The following exhibit is being furnished (not filed) herewith:

99.1         Press release, dated October 11, 2005, entitled “Lattice Semiconductor Confirms Revenue Guidance for Q3 2005”

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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

For more information contact:

Investor Relations

Phone: (503) 268.8000

ir@latticesemi.com

LATTICE SEMICONDUCTOR CONFIRMS REVENUE GUIDANCE FOR Q3 2005

TUESDAY, OCTOBER 11, 2005

HILLSBORO, Oregon – October 11, 2005 - Lattice Semiconductor Corporation (NASDAQ:LSCC) announced today that it expects its revenue for the third quarter of 2005 to come in at the high end of its previously announced guidance of 1% - 2% sequential revenue growth.  Lattice plans to release its financial results for the third quarter after market close on October 26, 2005 and further announced that the time of its conference call has been moved to 5:30 a.m. (Pacific Time) on Thursday, October 27.

After the close of market on October 26, and prior to the conference call, Lattice Semiconductor will post the financial results on its website, www.lscc.com, and distribute a copy of its earnings release via Business Wire. The call will be broadcast live over the Internet by CCBN.  A replay will be available through CCBN and Lattice’s website at www.lscc.com, until 5:00 p.m. Pacific Time on November 10, 2005.

The foregoing statements are forward-looking statements within the meaning of the Federal Securities laws. Investors are cautioned that actual events and results could differ materially from these statements as a result of a number of factors, including overall semiconductor market conditions, market acceptance and demand for our new products, our dependencies on our silicon wafer suppliers, the impact of competitive products and pricing, and technological and product development risks. For further description of these risks please refer to our current documents on file with the SEC.

5555 Northeast Moore Ct. • Hillsboro, Oregon 97124-6421 • Phone (503) 268-8000 • FAX (503) 268-8347

Internet: www.latticesemi.com