<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 3-MOS
<FISCAL-YEAR-END> JUN-30-2001
<PERIOD-START> JUL-01-2000
<PERIOD-END> SEP-30-2000
<CASH> 23,011
<SECURITIES> 39,506
<RECEIVABLES> 24,501
<ALLOWANCES> 377
<INVENTORY> 27,796
<CURRENT-ASSETS> 115,355
<PP&E> 39,531
<DEPRECIATION> 20,463
<TOTAL-ASSETS> 150,530
<CURRENT-LIABILITIES> 37,051
<BONDS> 0
0
0
<COMMON> 22,856
<OTHER-SE> 12,896
<TOTAL-LIABILITY-AND-EQUITY> 150,530
<SALES> 35,999
<TOTAL-REVENUES> 35,999
<CGS> 20,579
<TOTAL-COSTS> 20,579
<OTHER-EXPENSES> 8,532
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 169
<INCOME-PRETAX> 7,311
<INCOME-TAX> 1,828
<INCOME-CONTINUING> 5,483
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 5,483
<EPS-BASIC> 0.24<F1>
<EPS-DILUTED> 0.22<F1>
<FN>
<F1>EPS calculations reflect a three-for-two forward stock dividend effected August
18, 2000. Prior period financial data schedules have not been restated to
reflect the stock dividend.
</FN>
</TABLE>