<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEETS AND CONSOLIDATED STATEMENTS OF INCOME FOUND ON
PAGES 3 AND 4 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 11,162
<SECURITIES> 34,180
<RECEIVABLES> 7,327
<ALLOWANCES> 1,103
<INVENTORY> 12,875
<CURRENT-ASSETS> 74,311
<PP&E> 10,833
<DEPRECIATION> 7,883
<TOTAL-ASSETS> 105,110
<CURRENT-LIABILITIES> 17,988
<BONDS> 0
0
0
<COMMON> 197
<OTHER-SE> 85,345
<TOTAL-LIABILITY-AND-EQUITY> 105,110
<SALES> 12,119
<TOTAL-REVENUES> 12,119
<CGS> 9,382
<TOTAL-COSTS> 9,382
<OTHER-EXPENSES> 21,964
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 1
<INCOME-PRETAX> 48,754
<INCOME-TAX> 9,397
<INCOME-CONTINUING> 39,357
<DISCONTINUED> (89)
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 39,268
<EPS-BASIC> 2.05
<EPS-DILUTED> 1.93
</TABLE>