<ARTICLE> 5 <LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE CONSOLIDATED FINANCIAL STATEMENTS AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH CONSOLIDATED FINANCIAL STATEMENTS AND NOTES. </LEGEND> <MULTIPLIER> 1,000 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-2000 <PERIOD-END> JUN-30-2000 <CASH> 88,098 <SECURITIES> 123,239 <RECEIVABLES> 237,795 <ALLOWANCES> (15,682) <INVENTORY> 181,718 <CURRENT-ASSETS> 736,500 <PP&E> 978,160 <DEPRECIATION> (770,363) <TOTAL-ASSETS> 1,077,496 <CURRENT-LIABILITIES> 324,168 <BONDS> 12 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 429 <OTHER-SE> 715,664 <TOTAL-LIABILITY-AND-EQUITY> 1,077,496 <SALES> 637,882 <TOTAL-REVENUES> 637,882 <CGS> 440,469 <TOTAL-COSTS> 440,469 <OTHER-EXPENSES> 165,321 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 851 <INCOME-PRETAX> 44,009 <INCOME-TAX> 9,683 <INCOME-CONTINUING> 34,326 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 34,326 <EPS-BASIC> 0.97 <EPS-DILUTED> 0.95