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Document and Entity Information
Sep. 11, 2023
Cover [Abstract]  
Entity Registrant Name LATTICE SEMICONDUCTOR CORP
Amendment Flag false
Entity Central Index Key 0000855658
Document Type 8-K
Document Period End Date Sep. 11, 2023
Entity Incorporation State Country Code DE
Entity File Number 000-18032
Entity Tax Identification Number 93-0835214
Entity Address, Address Line One 5555 NE Moore Court
Entity Address, City or Town Hillsboro
Entity Address, State or Province OR
Entity Address, Postal Zip Code 97124
City Area Code (503)
Local Phone Number 268-8000
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common Stock, $.01 par value
Trading Symbol LSCC
Security Exchange Name NASDAQ
Entity Emerging Growth Company false