FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * Fanning Christopher M   2. Issuer Name and Ticker or Trading Symbol LATTICE SEMICONDUCTOR CORP [LSCC] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) CVP Low Density & Mixed Signal (Last) (First) (Middle) 5555 N.E. MOORE CT. 3. Date of Earliest Transaction (Month/Day/Year) 02/03/2011 (Street) HILLSBORO, OR 97124 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 02/03/2011   M   1,555 A $ 0 (1) 30,907 D   Common Stock 02/03/2011   F(2)   551 D $ 6.4425 30,356 D   Common Stock 02/07/2011   M   628 A $ 0 (1) 30,984 D   Common Stock 02/07/2011   F(2)   222 D $ 6.66 30,762 D   Common Stock 02/07/2011   M   639 A $ 0 (1) 31,401 D   Common Stock 02/07/2011   F(2)   226 D $ 6.66 31,175 D

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Restricted Stock Unit (RSU)

$ 0 (3)

02/07/2011

M

639

(4)

02/07/2011(5)

Common Stock

639

$ 0

0

D

Restricted Stock Unit (RSU)

$ 0 (3)

02/03/2011

M

1,555

(6)

02/04/2013(5)

Common Stock

1,555

$ 0

12,439

D

Restricted Stock Unit (RSU)

$ 0 (3)

02/07/2011

M

628

(7)

02/04/2013(5)

Common Stock

628

$ 0

11,811

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Fanning Christopher M 5555 N.E. MOORE CT. HILLSBORO, OR 97124			CVP Low Density & Mixed Signal

Signatures

By: Byron W. Milstead, Attorney-in-Fact For: Christopher Fanning		02/07/2011
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Restricted Stock Units - no purchase price for this transaction.
(2)	These shares were retained by the Issuer in order to meet the tax withholding obligations of the Reporting Person in connection with the vesting of an installment of the restricted stock units. The amoun retained by the Issuer was not in excess of the amount of the tax liability.
(3)	Each Restricted Stock Unit (RSU) represents a right to receive one share of the Issuers common shares without payment of specific consideration.
(4)	A total of 10,222 Restricted Stock Units (RSUs) were granted on 2/6/07 that vest over a four year period wherein 1/16th (6.25%) of the total RSUs granted vest on each quarterly anniversary of the grant date. As of 6/1/09, the effective date the reporting individual became subject to Section 16, a total of 5,749 RSUs have vest and the shares have been released to the reporting individual. The remaining 4,473 RSUs shall continue to vest quarterly until fully vested on 2/6/2011.
(5)	Not applicable.
(6)	This grant of Restricted Stock Units (RSUs) vest as follows: 25% of the RSUs will vest upon the one-year anniversary of the grant date and an additional 6.25% of the RSUs vest each three months thereafter until 100% of the RSU grant is vested.
(7)	A total of 10,049 Restricted Stock Units (RSUs) were granted on 2/5/08 that vest over a four year period wherein 1/16th (6.25%) of the total RSUs granted vest on each quarterly anniversary of the grant date. As of 6/1/09, the effective date the reporting individual became subject to Section 16, a total of 3,140 RSUs have vest and the shares have been released to the reporting individual (less any shares withheld to satisfy the tax withholding obligation). The remaining 6,909 RSUs shall continue to vest quarterly until fully vested on 2/5/2012.

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