<ARTICLE> 5
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               MAR-31-1997
<EXCHANGE-RATE>                                      1
<CASH>                                          34,299
<SECURITIES>                                    22,854
<RECEIVABLES>                                    9,372
<ALLOWANCES>                                   (1,093)
<INVENTORY>                                      3,575
<CURRENT-ASSETS>                                72,411<F1>
<PP&E>                                           4,267
<DEPRECIATION>                                       0
<TOTAL-ASSETS>                                  76,888
<CURRENT-LIABILITIES>                           13,604
<BONDS>                                             99
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           126
<OTHER-SE>                                      63,059
<TOTAL-LIABILITY-AND-EQUITY>                    76,888
<SALES>                                         15,303
<TOTAL-REVENUES>                                15,303
<CGS>                                            4,959
<TOTAL-COSTS>                                    4,959
<OTHER-EXPENSES>                                 6,342
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                  4,527<F2>
<INCOME-TAX>                                     1,630
<INCOME-CONTINUING>                              2,897
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     2,897
<EPS-PRIMARY>                                     0.22
<EPS-DILUTED>                                     0.22
<FN>
<F1>ADDITIONAL CURRENT ASSET - DEFERRED TAXES  2,280
ADDITIONAL CURRENT ASSET - OTHER               1,124
OTHER ASSETS, NET                                210
<F2>INTEREST INCOME, NET                         525
</FN>