Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF 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 *
  O'Brien Robert W Jr
 2. Date of Event Requiring Statement (Month/Day/Year)
07/31/2008		 3. Issuer Name and Ticker or Trading Symbol
LATTICE SEMICONDUCTOR CORP [LSCC]
(Last)
(First)
(Middle)
5555 N.E. MOORE CT.		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Interim CFO
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

HILLSBORO, OR 97124		 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 Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 2,816
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Non-Qualified Stock Option (right to buy) 11/06/2007(1) 08/06/2014 Common Stock 3,300 $ 4.46 D  
Non-Qualified Stock Option (right to buy) 11/09/2005(2) 08/09/2015 Common Stock 7,500 $ 4.56 D  
Non-Qualified Stock Option (right to buy) 11/01/2006(3) 08/01/2013 Common Stock 12,500 $ 5.63 D  
Non-Qualified Stock Option (right to buy) 05/11/2005(4) 05/11/2014 Common Stock 20,000 $ 7.45 D  
Restricted Stock Unit (RSU)   (5)   (6) Common Stock 1,788 $ 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
O'Brien Robert W Jr
5555 N.E. MOORE CT.
HILLSBORO, OR 97124		       Interim CFO  

Signatures

Robert W. O'Brien Jr. 08/04/2008
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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) This option to purchase shares of common stock vests as follows: 6.25% of the total amount of shares subject to the option shall vest on 11/6/07. 6.25% of the total amount of the shares subject to the option shall vest each three months thereafter until all shares are vested on 8/6/11.
(2) This option to purchase shares of common stock vests as follows: 6.25% of the total amount of shares subject to the option shall vest on 11/9/05. 6.25% of the total amount of the shares subject to the option shall vest each three months thereafter until all shares are vested on 8/9/09.
(3) This option to purchase shares of common stock vests as follows: 6.25% of the total amount of shares subject to the option shall vest on 11/1/06. 6.25% of the total amount of the shares subject to the option shall vest each three months thereafter until all shares are vested on 8/1/10.
(4) This option to purchase shares of common stock vests as follows: 25% of the total amount of shares subject to the option shall vest on 5/11/05. 6.25% of the total amount of the shares subject to the option shall vest each three months thereafter until all shares are vested on 5/11/08.
(5) 2,200 Restricted Stock Units (RSUs) were granted on 8/6/07 and vest, in whole shares as follows: 6.25% of the RSU grant shall vest on 11/6/07, and an additional 6.25% of the RSUs vest on each three months thereafter until 100% of the RSU grant is vested on 8/6/11.
(6) 2,200 Restricted Stock Units (RSUs) were granted on 8/6/07 and vest, in whole shares as follows: 6.25% of the RSU grant shall vest on 11/6/07, and an additional 6.25% of the RSUs vest on each three months thereafter until 100% of the RSU grant is vested on 8/6/11.

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