<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from quarterly
unaudited consolidated financial statements and is qualified in its entirety by
reference to such financial statements.
</LEGEND>
<S> <C> <C>
<PERIOD-TYPE> 3-MOS 6-MOS
<FISCAL-YEAR-END> DEC-31-2000 DEC-31-2000
<PERIOD-START> APR-01-2000 JAN-01-2000
<PERIOD-END> JUN-30-2000 JUN-30-2000
<CASH> 0 103,941
<SECURITIES> 0 97,618
<RECEIVABLES> 0 16,715
<ALLOWANCES> 0 1,179
<INVENTORY> 0 7,156
<CURRENT-ASSETS> 0 231,213
<PP&E> 0 31,349
<DEPRECIATION> 0 15,329
<TOTAL-ASSETS> 0 253,406
<CURRENT-LIABILITIES> 0 18,084
<BONDS> 0 0
0 0
0 0
<COMMON> 0 166
<OTHER-SE> 0 235,156
<TOTAL-LIABILITY-AND-EQUITY> 0 253,406
<SALES> 32,125 59,847
<TOTAL-REVENUES> 32,125 59,847
<CGS> 11,991 22,580
<TOTAL-COSTS> 11,991 22,580
<OTHER-EXPENSES> 18,746 36,741
<LOSS-PROVISION> 0 0
<INTEREST-EXPENSE> 0 0
<INCOME-PRETAX> 5,377 6,491
<INCOME-TAX> 376 454
<INCOME-CONTINUING> 5,001 6,037
<DISCONTINUED> 0 0
<EXTRAORDINARY> 0 0
<CHANGES> 0 0
<NET-INCOME> 5,001 6,037
<EPS-BASIC> 0.30 0.40
<EPS-DILUTED> 0.29 0.37
</TABLE>