EXHIBIT 11

Microsemi Corporation and Subsidiaries
Unaudited Earnings Per Share Calculation
(in thousands, except earnings per share)



 
                                                  13 Weeks Ended                    26 Weeks Ended
                                          March 30, 1997   March 31, 1996   March 30, 1997   March 31,1996
                                          --------------   --------------   --------------   -------------
                                                (amounts in 000's)                (amounts in 000's)
                                                                                 
PRIMARY
 
Net income                                       $ 2,395          $ 1,828          $ 4,284         $ 3,257
                                                 =======          =======          =======         =======
 
Equivalent shares outstanding                      8,568            7,824            8,363           7,824
Equivalent shares from stock options                 337              408              369             440
                                                 -------          -------          -------         -------
 
Primary common and common
   equivalent shares                               8,905            8,232            8,732           8,264
                                                 =======          =======          =======         =======
 
Primary earnings per share                       $  0.27          $  0.22          $  0.49         $  0.39
                                                 =======          =======          =======         =======
 
FULLY DILUTED
 
Net income                                       $ 2,395          $ 1,828          $ 4,284         $ 3,257
Interest savings from conversion of
   convertible debt, net of income
   taxes                                             305              323              626             646
                                                 -------          -------          -------         -------    
                                                                  
 
Fully diluted net income                         $ 2,700          $ 2,151          $ 4,910         $ 3,903
                                                 =======          =======          =======         =======
 
Equivalent shares outstanding                      8,568            7,824            8,363           7,824
Equivalent shares from stock options                 337              408              403             440
Convertible shares                                 2,988            3,523            3,194           3,523
                                                 -------          -------          -------         -------
 
Fully diluted common and common
equivalent shares                                 11,893           11,755           11,960          11,787
                                                 =======          =======          =======         =======
 
Fully diluted earnings per share                 $  0.23          $  0.18          $  0.41         $  0.33
                                                 =======          =======          =======         =======