<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
FINANCIAL STATEMENTS IN THE QUARTERLY REPORT ON FORM 6-K OF GALILEO TECHNOLOGY
LTD. FOR THE SIX MONTHS ENDED JUNE 30, 2000 AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 57,070
<SECURITIES> 50,396
<RECEIVABLES> 10,787
<ALLOWANCES> 203
<INVENTORY> 11,545
<CURRENT-ASSETS> 131,882
<PP&E> 20,634
<DEPRECIATION> 8,172
<TOTAL-ASSETS> 152,435
<CURRENT-LIABILITIES> 18,551
<BONDS> 0
0
0
<COMMON> 76,133
<OTHER-SE> 55,345
<TOTAL-LIABILITY-AND-EQUITY> 152,435
<SALES> 44,470
<TOTAL-REVENUES> 44,470
<CGS> 18,819
<TOTAL-COSTS> 18,819
<OTHER-EXPENSES> 11,979
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 0
<INCOME-PRETAX> 8,130
<INCOME-TAX> 408
<INCOME-CONTINUING> 7,722
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 7,722
<EPS-BASIC> 0.18
<EPS-DILUTED> 0.17
</TABLE>