<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 3-MOS
<FISCAL-YEAR-END> MAR-31-2001
<PERIOD-START> APR-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 30,970
<SECURITIES> 67,066
<RECEIVABLES> 122,074
<ALLOWANCES> 4,744
<INVENTORY> 69,993
<CURRENT-ASSETS> 298,262
<PP&E> 115,662
<DEPRECIATION> 70,844
<TOTAL-ASSETS> 353,380
<CURRENT-LIABILITIES> 77,643
<BONDS> 0
0
0
<COMMON> 732
<OTHER-SE> 275,005
<TOTAL-LIABILITY-AND-EQUITY> 353,380
<SALES> 86,734
<TOTAL-REVENUES> 86,734
<CGS> 56,223
<TOTAL-COSTS> 56,223
<OTHER-EXPENSES> 20,880
<LOSS-PROVISION> 100
<INTEREST-EXPENSE> 16
<INCOME-PRETAX> 10,645
<INCOME-TAX> 1,597
<INCOME-CONTINUING> 9,048
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 9,048
<EPS-BASIC> 0.12
<EPS-DILUTED> 0.12
</TABLE>