<SEC-DOCUMENT>0001193125-15-264063-index.html : 20150727
<SEC-HEADER>0001193125-15-264063.hdr.sgml : 20150727
<ACCEPTANCE-DATETIME>20150727161759
ACCESSION NUMBER:		0001193125-15-264063
CONFORMED SUBMISSION TYPE:	S-3ASR
PUBLIC DOCUMENT COUNT:		7
FILED AS OF DATE:		20150727
DATE AS OF CHANGE:		20150727
EFFECTIVENESS DATE:		20150727

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CADENCE DESIGN SYSTEMS INC
		CENTRAL INDEX KEY:			0000813672
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		IRS NUMBER:				770148231
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1228

	FILING VALUES:
		FORM TYPE:		S-3ASR
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-205884
		FILM NUMBER:		151007286

	BUSINESS ADDRESS:	
		STREET 1:		2655 SEELY AVENUE BLDG 5
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95134
		BUSINESS PHONE:		4089431234

	MAIL ADDRESS:	
		STREET 1:		2655 SEELY AVENUE
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95134

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ECAD INC /DE/
		DATE OF NAME CHANGE:	19880609
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-3ASR
<SEQUENCE>1
<FILENAME>d73749ds3asr.htm
<DESCRIPTION>S-3
<TEXT>
Document 1 - file: d73749ds3asr.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.01
<SEQUENCE>2
<FILENAME>d73749dex501.htm
<DESCRIPTION>EX-5.01
<TEXT>
Document 2 - file: d73749dex501.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-12.01
<SEQUENCE>3
<FILENAME>d73749dex1201.htm
<DESCRIPTION>EX-12.01
<TEXT>
Document 3 - file: d73749dex1201.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.01
<SEQUENCE>4
<FILENAME>d73749dex2301.htm
<DESCRIPTION>EX-23.01
<TEXT>
Document 4 - file: d73749dex2301.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-25.01
<SEQUENCE>5
<FILENAME>d73749dex2501.htm
<DESCRIPTION>EX-25.01
<TEXT>
Document 5 - file: d73749dex2501.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g73749dar.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g73749dar.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g73749g62u58.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g73749g62u58.jpg

</DOCUMENT>
</SEC-DOCUMENT>