<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> MAR-31-2001 <PERIOD-START> APR-01-2000 <PERIOD-END> JUN-30-2000 <CASH> 121,485 <SECURITIES> 423,735 <RECEIVABLES> 92,252 <ALLOWANCES> 1,287 <INVENTORY> 67,316 <CURRENT-ASSETS> 782,716 <PP&E> 243,716 <DEPRECIATION> 109,180 <TOTAL-ASSETS> 1,231,389 <CURRENT-LIABILITIES> 226,154 <BONDS> 229,800 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 99 <OTHER-SE> 764,536 <TOTAL-LIABILITY-AND-EQUITY> 1,231,389 <SALES> 183,427 <TOTAL-REVENUES> 183,427 <CGS> 70,510 <TOTAL-COSTS> 70,510 <OTHER-EXPENSES> 92,357 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 3,044 <INCOME-PRETAX> 38,207 <INCOME-TAX> 16,559 <INCOME-CONTINUING> 21,648 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 21,648 <EPS-BASIC> 0.21 <EPS-DILUTED> 0.21