<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED STATEMENTS OF OPERATIONS, THE CONSOLIDATED BALANCE SHEETS, AND THE
ACCOMPANYING NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS, AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000

<S>                             <C>                     <C>
<PERIOD-TYPE>                   12-MOS                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1996             DEC-31-1995
<PERIOD-START>                             JAN-01-1996             JAN-01-1995
<PERIOD-END>                               DEC-31-1996             DEC-31-1995
<CASH>                                          11,141                   6,796
<SECURITIES>                                   117,961                 111,448
<RECEIVABLES>                                   16,868                  32,324
<ALLOWANCES>                                       205                     243
<INVENTORY>                                     22,578                  22,434
<CURRENT-ASSETS>                               183,591                 181,196
<PP&E>                                          25,951                  18,167
<DEPRECIATION>                                  15,767                  13,101
<TOTAL-ASSETS>                                 197,866                 191,741
<CURRENT-LIABILITIES>                           24,215                  34,347
<BONDS>                                              0                       0
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                           182                     180
<OTHER-SE>                                     173,469                 157,214
<TOTAL-LIABILITY-AND-EQUITY>                   197,866                 191,741
<SALES>                                        151,950                 169,240
<TOTAL-REVENUES>                               151,950                 169,240
<CGS>                                           79,666                  76,606
<TOTAL-COSTS>                                   79,666                  76,606
<OTHER-EXPENSES>                                     0                       0
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                                  38                      44
<INCOME-PRETAX>                                 33,701                  57,614
<INCOME-TAX>                                     9,242                  20,417
<INCOME-CONTINUING>                             24,459                  37,097
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                    24,459                  37,097
<EPS-PRIMARY>                                     1.38                    2.09
<EPS-DILUTED>                                     1.36                    2.05


</TABLE>