<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000749748
<NAME> PACIFIC CAPITAL U.S. GOVT SECURITIES CASH ASSETS TRUST
<SERIES>
<NUMBER> 032
<NAME> SERVICE SHARES
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> MAR-31-2000
<PERIOD-END> MAR-31-2000
<INVESTMENTS-AT-COST> 461,143,110
<INVESTMENTS-AT-VALUE> 461,143,110
<RECEIVABLES> 0
<ASSETS-OTHER> 221
<OTHER-ITEMS-ASSETS> 84
<TOTAL-ASSETS> 461,143,415
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2,149,303
<TOTAL-LIABILITIES> 2,149,303
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 458,977,230
<SHARES-COMMON-STOCK> 293,298,683
<SHARES-COMMON-PRIOR> 214,274,847
<ACCUMULATED-NII-CURRENT> 26,907
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (10,025)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 293,305,878
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 19,436,070
<OTHER-INCOME> 0
<EXPENSES-NET> 2,415,151
<NET-INVESTMENT-INCOME> 17,020,919
<REALIZED-GAINS-CURRENT> (1,535)
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 17,019,384
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 10,697,872
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1,062,992,710
<NUMBER-OF-SHARES-REDEEMED> 994,232,663
<SHARES-REINVESTED> 10,263,790
<NET-CHANGE-IN-ASSETS> 104,833,233
<ACCUMULATED-NII-PRIOR> 26,907
<ACCUMULATED-GAINS-PRIOR> (8,491)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1,190,224
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2,415,751
<AVERAGE-NET-ASSETS> 237,944,805
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> .04
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> .04
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .74
</TABLE>
