<ARTICLE> 5 <MULTIPLIER> 1,000 <CURRENCY> U.S. DOLLARS <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-START> JUL-01-1999 <PERIOD-END> SEP-30-1999 <EXCHANGE-RATE> 1 <CASH> 73,494 <SECURITIES> 599,146 <RECEIVABLES> 131,505 <ALLOWANCES> 1,642 <INVENTORY> 35,446 <CURRENT-ASSETS> 879,506 <PP&E> 312,883 <DEPRECIATION> 104,440 <TOTAL-ASSETS> 1,140,000 <CURRENT-LIABILITIES> 128,252 <BONDS> 53,711 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 1,507 <OTHER-SE> 940,990 <TOTAL-LIABILITY-AND-EQUITY> 1,140,000 <SALES> 163,448 <TOTAL-REVENUES> 208,431 <CGS> 25,806 <TOTAL-COSTS> 123,940 <OTHER-EXPENSES> 8,092 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 1,171 <INCOME-PRETAX> 92,583 <INCOME-TAX> 30,554 <INCOME-CONTINUING> 62,029 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 62,029 <EPS-BASIC> 0.41 <EPS-DILUTED> 0.39