<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM CADENCE
DESIGN SYSTEMS, INC.'S ANNUAL REPORT ON FORM 10-K FOR THE FISCAL YEAR ENDED
JANUARY 3, 1998 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS.
</LEGEND>
<RESTATED> 
<MULTIPLIER> 1,000
       
                                                                                            

<PERIOD-TYPE>                   YEAR                   YEAR                   3-MOS                   6-MOS
9-MOS
<FISCAL-YEAR-END>                          DEC-30-1995             DEC-28-1996             DEC-28-1996             DEC-28-1996
             DEC-28-1996
<PERIOD-START>                             JAN-01-1995             DEC-31-1995             DEC-31-1995             DEC-31-1995
             DEC-31-1995
<PERIOD-END>                               DEC-30-1995             DEC-28-1996             MAR-30-1996             JUN-29-1996
             SEP-28-1996
<CASH>                                          84,867                 284,512                  73,436                  88,646
                  83,211
<SECURITIES>                                    11,774                   1,015                   9,722                  10,433
                   2,023
<RECEIVABLES>                                   88,503                 148,449                  90,908                  93,955
                  99,030
<ALLOWANCES>                                     7,420                   8,772                       0                   5,217
                   6,651
<INVENTORY>                                      8,203                   8,133                   6,620                   6,726
                   7,830
<CURRENT-ASSETS>                               206,923                 491,135                 198,384                 221,507
                 217,855
<PP&E>                                         229,554                 288,231                 242,594                 254,624
                 271,836
<DEPRECIATION>                                 105,451                 127,304                 109,590                 115,507
                 122,151
<TOTAL-ASSETS>                                 374,035                 717,001                 378,860                 412,528
                 419,015
<CURRENT-LIABILITIES>                          200,427                 231,578                 211,481                 219,723
                 206,428
<BONDS>                                              0                       0                       0                       0
                       0
<PREFERRED-MANDATORY>                                0                       0                       0                       0
                       0
<PREFERRED>                                          0                       0                       0                       0
                       0
<COMMON>                                         8,660                 277,793                (20,412)                (37,246)
                (48,228)
<OTHER-SE>                                     125,421                 149,755                 149,964                 175,737
                 208,635
<TOTAL-LIABILITY-AND-EQUITY>                   374,035                 717,001                 378,860                 412,528
                 419,015
<SALES>                                        548,418                 741,459                 163,430                 340,456
                 529,197
<TOTAL-REVENUES>                               548,418                 741,459                 163,430                 340,456
                 529,197
<CGS>                                          116,530                 153,473                  33,639                  71,404
                 110,666
<TOTAL-COSTS>                                  116,530                 153,473                  33,639                  71,404
                 110,666
<OTHER-EXPENSES>                               314,028                 496,727                  91,218                 187,046
                 286,543
<LOSS-PROVISION>                                     0                       0                       0                       0
                       0
<INTEREST-EXPENSE>                               2,222                   1,913                       0                     390
                   1,131
<INCOME-PRETAX>                                135,097                  90,477                  38,178                  80,847
                 129,633
<INCOME-TAX>                                    37,827                  61,439                  12,599                  26,680
                  42,779
<INCOME-CONTINUING>                             97,270                  29,038                  25,579                  54,167
                  86,854
<DISCONTINUED>                                       0                       0                       0                       0
                       0
<EXTRAORDINARY>                                      0                       0                       0                       0
                       0
<CHANGES>                                            0                       0                       0                       0
                       0
<NET-INCOME>                                    97,270                  29,038                  25,579                  54,167
                  86,854
<EPS-PRIMARY>                                     0.59                    0.19                    0.16                    0.35
                    0.56
<EPS-DILUTED>                                     0.51                    0.16                    0.14                    0.30
                    0.48