<ARTICLE>                     5
<MULTIPLIER>                                   1000
       
                                            
<PERIOD-TYPE>                                  3-MOS
<FISCAL-YEAR-END>                              Dec-31-1996
<PERIOD-END>                                   Jun-30-1996
<CASH>                                         4330
<SECURITIES>                                   17034
<RECEIVABLES>                                  9501<F1>
<ALLOWANCES>                                   0
<INVENTORY>                                    3943
<CURRENT-ASSETS>                               35291
<PP&E>                                         7295<F2>
<DEPRECIATION>                                 0
<TOTAL-ASSETS>                                 48954
<CURRENT-LIABILITIES>                          9233
<BONDS>                                        0
<PREFERRED-MANDATORY>                          0
<PREFERRED>                                    0
<COMMON>                                       87
<OTHER-SE>                                     33953
<TOTAL-LIABILITY-AND-EQUITY>                   48954
<SALES>                                        10164
<TOTAL-REVENUES>                               12376
<CGS>                                          4358
<TOTAL-COSTS>                                  6254
<OTHER-EXPENSES>                               2185<F3>
<LOSS-PROVISION>                               0
<INTEREST-EXPENSE>                             140
<INCOME-PRETAX>                                724
<INCOME-TAX>                                   83
<INCOME-CONTINUING>                            0
<DISCONTINUED>                                 0
<EXTRAORDINARY>                                0
<CHANGES>                                      0
<NET-INCOME>                                   640
<EPS-PRIMARY>                                  .07
<EPS-DILUTED>                                  .07

<FN>

<F1>Net of  allowance  for doubtful  accounts,  consistent  with  balance  sheet
presentation.
<F2>Net of accumulated depreciation, consistent with balance sheet
presentation. 
<F3>Research and development expenses
</FN>