<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-END> JUN-30-1997 <CASH> $3,221 <SECURITIES> 15,874 <RECEIVABLES> 9,971 <ALLOWANCES> (100) <INVENTORY> 7,107 <CURRENT-ASSETS> 37,226 <PP&E> 11,124 <DEPRECIATION> (5,458) <TOTAL-ASSETS> 46,653 <CURRENT-LIABILITIES> 10,639 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 51,078 <OTHER-SE> 2,506 <TOTAL-LIABILITY-AND-EQUITY> 47,653 <SALES> 14,552 <TOTAL-REVENUES> 14,552 <CGS> 6,922 <TOTAL-COSTS> 6,922 <OTHER-EXPENSES> 11,910 <LOSS-PROVISION> 50 <INTEREST-EXPENSE> (2) <INCOME-PRETAX> (3,759) <INCOME-TAX> 64 <INCOME-CONTINUING> (3,823) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (3,823) <EPS-PRIMARY> ($0.31) <EPS-DILUTED> ($0.31)