<ARTICLE> 5 <LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE INCOME STATEMENT FOR THE TWELVE MONTH PERIOD ENDED DECEMBER 31, 1997, AND THE BALANCE SHEET AS OF DECEMBER 31, 1997, AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS. </LEGEND> <MULTIPLIER> 1,000 <PERIOD-TYPE> YEAR <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1997 <PERIOD-END> DEC-31-1997 <CASH> 17,464 <SECURITIES> 8,371 <RECEIVABLES> 11,159 <ALLOWANCES> 577 <INVENTORY> 11,311 <CURRENT-ASSETS> 51,517 <PP&E> 17,322 <DEPRECIATION> 9,904 <TOTAL-ASSETS> 65,523 <CURRENT-LIABILITIES> 6,625 <BONDS> 152 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 75 <OTHER-SE> 57,358 <TOTAL-LIABILITY-AND-EQUITY> 65,523 <SALES> 35,777 <TOTAL-REVENUES> 46,850 <CGS> 12,452 <TOTAL-COSTS> 16,154 <OTHER-EXPENSES> 23,623 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 41 <INCOME-PRETAX> 8,005 <INCOME-TAX> 2,800 <INCOME-CONTINUING> 5,205 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 5,205 <EPS-PRIMARY> 0.70 <EPS-DILUTED> 0.67