LATTICE SEMICONDUCTOR CORP — Director's Dealing 2011

Feb 7, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: LATTICE SEMICONDUCTOR CORP (LSCC)
CIK: 0000855658
Period of Report: 2011-02-03

Reporting Person: Fanning Christopher M (CVP Low Density & Mixed Signal)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-02-03	Common Stock	M	1555	—	Acquired	30907	Direct
2011-02-03	Common Stock	F	551	$6.4425	Disposed	30356	Direct
2011-02-07	Common Stock	M	628	—	Acquired	30984	Direct
2011-02-07	Common Stock	F	222	$6.66	Disposed	30762	Direct
2011-02-07	Common Stock	M	639	—	Acquired	31401	Direct
2011-02-07	Common Stock	F	226	$6.66	Disposed	31175	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-02-07	Restricted Stock Unit (RSU)	$0	M	639	Disposed	2011-02-07	Common Stock (639)	Direct
2011-02-03	Restricted Stock Unit (RSU)	$0	M	1555	Disposed	2013-02-04	Common Stock (1555)	Direct
2011-02-07	Restricted Stock Unit (RSU)	$0	M	628	Disposed	2013-02-04	Common Stock (628)	Direct

Footnotes

F1: Restricted Stock Units - no purchase price for this transaction.

F2: 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.

F3: Each Restricted Stock Unit (RSU) represents a right to receive one share of the Issuers common shares without payment of specific consideration.

F4: 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.

F5: Not applicable.

F6: 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.

F7: 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.