<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY INFORMATION EXTRACTED FROM SEC FORM 10Q AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>                     <C>                     <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   3-MOS                   9-MOS                   9-MOS
<FISCAL-YEAR-END>                          JUN-27-1998             JUN-28-1997             JUN-27-1998             JUN-28-1997
<PERIOD-END>                               MAR-28-1998             MAR-29-1997             MAR-28-1998             MAR-29-1997
<CASH>                                           1,140                   1,989                   1,140                   1,989
<SECURITIES>                                         0                       0                       0                       0
<RECEIVABLES>                                    7,357                   7,690                   7,357                   7,690
<ALLOWANCES>                                       965                     173                     965                     173
<INVENTORY>                                      8,152                   6,265                   8,152                   6,265
<CURRENT-ASSETS>                                17,319                  17,541                  17,319                  17,541
<PP&E>                                           7,765                   6,530                   7,765                   6,530
<DEPRECIATION>                                   4,558                   4,066                   4,588                   4,066
<TOTAL-ASSETS>                                  21,136                  21,574                  21,136                  21,574
<CURRENT-LIABILITIES>                           15,464                   9,858                  15,464                   9,858
<BONDS>                                              0                       0                       0                       0
<PREFERRED-MANDATORY>                                0                       0                       0                       0
<PREFERRED>                                          0                       0                       0                       0
<COMMON>                                            55                      54                      55                      54
<OTHER-SE>                                       4,554                  11,279                   4,554                  11,279
<TOTAL-LIABILITY-AND-EQUITY>                    21,136                  21,574                  21,136                  21,574
<SALES>                                          8,617                   8,790                  24,962                  25,835
<TOTAL-REVENUES>                                 8,629                   8,827                  24,991                  25,903
<CGS>                                            4,774                   4,112                  14,100                  12,747
<TOTAL-COSTS>                                    4,774                   4,112                  14,100                  12,747
<OTHER-EXPENSES>                                 4,002                   4,547                  16,118                  11,117
<LOSS-PROVISION>                                     0                       0                       0                       0
<INTEREST-EXPENSE>                                  47                      35                     181                      67
<INCOME-PRETAX>                                  (194)                     133                 (5,408)                   1,912
<INCOME-TAX>                                         0                   (170)                      78                     364
<INCOME-CONTINUING>                              (194)                     303                 (5,486)                   1,548
<DISCONTINUED>                                       0                       0                       0                       0
<EXTRAORDINARY>                                      0                       0                       0                       0
<CHANGES>                                            0                       0                       0                       0
<NET-INCOME>                                     (194)                     303                 (5,486)                   1,548
<EPS-PRIMARY>                                   (0.04)                    0.06                  (1.00)                    0.29
<EPS-DILUTED>                                   (0.04)                    0.05                  (1.00)                    0.27
        

</TABLE>