<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED FINANCIAL STATEMENT OF OPERATIONS, THE CONSOLIDATED BALANCE SHEET
AND THE ACCOMPANYING NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS, AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                                        
<PERIOD-TYPE>                                    6-MOS
<FISCAL-YEAR-END>                          JUN-30-1997
<PERIOD-START>                             JUL-01-1996
<PERIOD-END>                               DEC-31-1996
<CASH>                                        161,181
<SECURITIES>                                  218,752
<RECEIVABLES>                                 125,456
<ALLOWANCES>                                    3,103
<INVENTORY>                                   126,349
<CURRENT-ASSETS>                              477,479
<PP&E>                                        133,459
<DEPRECIATION>                                 58,812
<TOTAL-ASSETS>                                758,759
<CURRENT-LIABILITIES>                         163,360
<BONDS>                                             0
<PREFERRED-MANDATORY>                               0
<PREFERRED>                                         0
<COMMON>                                           51
<OTHER-SE>                                    589,032
<TOTAL-LIABILITY-AND-EQUITY>                  758,759
<SALES>                                       315,825
<TOTAL-REVENUES>                              315,825
<CGS>                                         149,186
<TOTAL-COSTS>                                 149,186
<OTHER-EXPENSES>                              104,912
<LOSS-PROVISION>                                    0
<INTEREST-EXPENSE>                                803
<INCOME-PRETAX>                                68,648
<INCOME-TAX>                                   23,340
<INCOME-CONTINUING>                            45,308
<DISCONTINUED>                                      0
<EXTRAORDINARY>                                     0
<CHANGES>                                           0
<NET-INCOME>                                   45,308
<EPS-PRIMARY>                                    0.86
<EPS-DILUTED>                                    0.86