<ARTICLE> 5 <MULTIPLIER> 1,000 <CURRENCY> 0 <PERIOD-TYPE> YEAR <FISCAL-YEAR-END> MAR-31-2000 <PERIOD-START> APR-01-1999 <PERIOD-END> MAR-31-2000 <EXCHANGE-RATE> 1 <CASH> 180,519 <SECURITIES> 482,172 <RECEIVABLES> 91,447 <ALLOWANCES> 1,282 <INVENTORY> 68,378 <CURRENT-ASSETS> 895,586 <PP&E> 241,902 <DEPRECIATION> 106,680 <TOTAL-ASSETS> 1,346,284 <CURRENT-LIABILITIES> 227,226 <BONDS> 229,800 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 103 <OTHER-SE> 874,755 <TOTAL-LIABILITY-AND-EQUITY> 1,346,284 <SALES> 811,161 <TOTAL-REVENUES> 811,161 <CGS> 282,672 <TOTAL-COSTS> 282,672 <OTHER-EXPENSES> 315,412 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 11,577 <INCOME-PRETAX> 248,580 <INCOME-TAX> 77,791 <INCOME-CONTINUING> 170,789 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 170,789 <EPS-BASIC> 1.65 <EPS-DILUTED> 1.56