<TABLE> <S> <C>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM FORM 10-Q FOR
THE PERIOD ENDED JUNE 30, 2000 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO
SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> JUN-30-2000
<CASH> 22,577
<SECURITIES> 52,974
<RECEIVABLES> 49,656
<ALLOWANCES> 0
<INVENTORY> 21,491
<CURRENT-ASSETS> 161,365
<PP&E> 80,852
<DEPRECIATION> 0
<TOTAL-ASSETS> 249,461
<CURRENT-LIABILITIES> 48,599
<BONDS> 0
0
0
<COMMON> 63,784
<OTHER-SE> 129,215
<TOTAL-LIABILITY-AND-EQUITY> 249,461
<SALES> 143,158
<TOTAL-REVENUES> 143,158
<CGS> 61,133
<TOTAL-COSTS> 61,133
<OTHER-EXPENSES> 35,812
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 0
<INCOME-PRETAX> 47,590
<INCOME-TAX> 15,707
<INCOME-CONTINUING> 31,883
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 31,883
<EPS-BASIC> 0.38
<EPS-DILUTED> 0.34
</TABLE>