<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
COMPANY'S BALANCE SHEETS AND CONSOLIDATED STATEMENTS OF INCOME AND IS QUALIFIED
IN ITS ENTIRETY TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          JUL-31-2001
<PERIOD-START>                             AUG-01-2000
<PERIOD-END>                               OCT-31-2000
<EXCHANGE-RATE>                                      1
<CASH>                                          32,402
<SECURITIES>                                    83,052
<RECEIVABLES>                                   67,396
<ALLOWANCES>                                     1,069
<INVENTORY>                                     68,797
<CURRENT-ASSETS>                               264,915
<PP&E>                                         175,642
<DEPRECIATION>                                 112,979
<TOTAL-ASSETS>                                 343,385
<CURRENT-LIABILITIES>                           48,161
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           699
<OTHER-SE>                                     281,788
<TOTAL-LIABILITY-AND-EQUITY>                   343,385
<SALES>                                         77,478
<TOTAL-REVENUES>                                83,140
<CGS>                                           50,571
<TOTAL-COSTS>                                   52,307
<OTHER-EXPENSES>                                24,485
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  58
<INCOME-PRETAX>                                  6,521
<INCOME-TAX>                                     2,080
<INCOME-CONTINUING>                              4,357
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     4,357
<EPS-BASIC>                                       0.34
<EPS-DILUTED>                                     0.34