<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM CONEXANT
SYSTEMS INC.'S MARCH 31, 2000 UNAUDITED CONSOLIDATED CONDENSED FINANCIAL
STATEMENTS AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000

<S>                             <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   6-MOS
<FISCAL-YEAR-END>                          SEP-30-2000             SEP-30-2000
<PERIOD-START>                             JAN-01-2000             OCT-02-1999
<PERIOD-END>                               MAR-31-2000             MAR-31-2000
<CASH>                                         930,892                 930,892
<SECURITIES>                                         0                       0
<RECEIVABLES>                                  302,629                 302,629
<ALLOWANCES>                                     6,765                   6,765
<INVENTORY>                                    261,703                 261,703
<CURRENT-ASSETS>                             1,704,092               1,704,092
<PP&E>                                       1,747,001               1,747,001
<DEPRECIATION>                                 959,702                 959,702
<TOTAL-ASSETS>                               3,844,246               3,844,246
<CURRENT-LIABILITIES>                          339,499                 339,499
<BONDS>                                      1,000,000               1,000,000
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                       216,932                 216,932
<OTHER-SE>                                   2,137,210               2,137,210
<TOTAL-LIABILITY-AND-EQUITY>                 3,844,246               3,844,246
<SALES>                                        501,728               1,011,691
<TOTAL-REVENUES>                               501,728               1,011,691
<CGS>                                          269,459                 546,905
<TOTAL-COSTS>                                  269,459                 546,905
<OTHER-EXPENSES>                               100,095                 188,572
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                               8,793                  12,466
<INCOME-PRETAX>                              (104,155)                (30,110)
<INCOME-TAX>                                    28,187                  50,401
<INCOME-CONTINUING>                          (132,342)                (80,511)
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                 (132,342)                (80,511)
<EPS-BASIC>                                   (0.64)                  (0.40)
<EPS-DILUTED>                                   (0.64)                  (0.40)


</TABLE>