EXHIBIT 23.3
 
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
    We hereby consent to the use in the Prospectus constituting part of this
Registration Statement on Form S-4 of Summit Design, Inc. and subsidiaries of
our report dated January 30, 1998, except for Note 20 as to which the date is
September 20, 1998, relating to the consolidated financial statements of Summit
Design, Inc., and subsidiaries, which appears in such Prospectus. We also
consent to the use of our report on the Financial Statement Schedule for the
three years ended December 31, 1997 appearing on page S-1 of this Registration
Statement. We also consent to the references to us under the heading "Experts"
in such Prospectus.
 
   
                                          PricewaterhouseCoopers
    
 
   
Portland, Oregon
November 9, 1998