<SEC-DOCUMENT>0000855658-20-000096-index.html : 20200601
<SEC-HEADER>0000855658-20-000096.hdr.sgml : 20200601
<ACCEPTANCE-DATETIME>20200601120911
ACCESSION NUMBER:		0000855658-20-000096
CONFORMED SUBMISSION TYPE:	SD
PUBLIC DOCUMENT COUNT:		4
<RULE>
<RULE-NAME>13p-1
<ITEM>
<ITEM-NUMBER>1.01
<ITEM-PERIOD>20191231
</ITEM>
<ITEM>
<ITEM-NUMBER>1.02
<ITEM-PERIOD>20191231
</ITEM>
</RULE>
FILED AS OF DATE:		20200601
DATE AS OF CHANGE:		20200601

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LATTICE SEMICONDUCTOR CORP
		CENTRAL INDEX KEY:			0000855658
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				930835214
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0102

	FILING VALUES:
		FORM TYPE:		SD
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-18032
		FILM NUMBER:		20932110

	BUSINESS ADDRESS:	
		STREET 1:		5555 NE MOORE CT
		CITY:			HILLSBORO
		STATE:			OR
		ZIP:			97124
		BUSINESS PHONE:		5032688000

	MAIL ADDRESS:	
		STREET 1:		5555 NE MOORE CT
		CITY:			HILLSBORO
		STATE:			OR
		ZIP:			97124
</SEC-HEADER>
<DOCUMENT>
<TYPE>SD
<SEQUENCE>1
<FILENAME>lscc2019formsd.htm
<DESCRIPTION>SD
<TEXT>
Document 1 - file: lscc2019formsd.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-1.01
<SEQUENCE>2
<FILENAME>lsccexhibit1012019formsd.htm
<DESCRIPTION>EXHIBIT 1.01
<TEXT>
Document 2 - file: lsccexhibit1012019formsd.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>latticelogocolorpmsa55.jpg
<TEXT>
Document 3 - file: latticelogocolorpmsa55.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>latticelogocolorpmsa56.jpg
<TEXT>
Document 4 - file: latticelogocolorpmsa56.jpg

</DOCUMENT>
</SEC-DOCUMENT>