<TABLE> <S> <C>
<S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM FORM 10-K/A
FOR THE PERIOD ENDED JUNE 30, 2000 AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> JUN-30-2000
<PERIOD-END> JUN-30-2000
<CASH> 19,100
<SECURITIES> 101,704
<RECEIVABLES> 18,294
<ALLOWANCES> 671
<INVENTORY> 20,137
<CURRENT-ASSETS> 170,893
<PP&E> 19,738
<DEPRECIATION> 32,368
<TOTAL-ASSETS> 236,400
<CURRENT-LIABILITIES> 34,283
<BONDS> 110
0
0
<COMMON> 55
<OTHER-SE> 201,255
<TOTAL-LIABILITY-AND-EQUITY> 236,400
<SALES> 65,348
<TOTAL-REVENUES> 86,456
<CGS> 34,577
<TOTAL-COSTS> 40,920
<OTHER-EXPENSES> 49,726 <F1>
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 32
<INCOME-PRETAX> (32,862)
<INCOME-TAX> 0
<INCOME-CONTINUING> (32,862)
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> (32,862)
<EPS-BASIC> (0.71)
<EPS-DILUTED> (0.71) <F2>
<FN>
<F1> Item consists of research and development.
<F2> Item consists of basic earnings per share.
</FN>
</TABLE>
