Exhibit 21

INTERSIL CORPORATION

SUBSIDIARIES OF REGISTRANT

AS OF JANUARY 02, 2009



|                                                                                                                                                                        |  |                                                                           
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------- |  | --------------------------------------------------------------------------
|Subsidiary Name                                                                                                                                                         |  | State or Other Jurisdictionof Incorporation                               
|U.S.                                                                                                                                                                    |  |                                                                           
|Intersil Communications, Inc.                                                                                                                                           |  | Delaware                                                                  
|Elantec Semiconductor, Inc.                                                                                                                                             |  | Delaware                                                                  
|Intersil Americas Inc.                                                                                                                                                  |  | Delaware                                                                  
|Intersil Investment Company                                                                                                                                             |  | Delaware                                                                  
|Xicor LLC Poweready, Inc. Analog Integration Partners, LLC Xicor, Inc. International Holding
Company Planet ATE, Inc. D2Audio Corporation Kenet, Inc. Zilker Labs, Inc. |  | DelawareDelaware California Delaware California Delaware Delaware Delaware
|                                                                                                                                                                        | 
|Asia                                                                                                                                                                    |  |                                                                           
|Intersil China Limited                                                                                                                                                  |  | Hong Kong, PRC                                                            
|Intersil K. K.                                                                                                                                                          |  | Japan                                                                     
|Intersil YH                                                                                                                                                             |  | Korea                                                                     
|Intersil Services Company Sdn. Bhd.                                                                                                                                     |  | Malaysia                                                                  
|Intersil Pte. Ltd.                                                                                                                                                      |  | Singapore                                                                 
|Intersil Ltd. Intersil Analog Services Pvt. Ltd.                                                                                                                        |  | TaiwanIndia                                                               
|                                                                                                                                                                        | 
|Europe                                                                                                                                                                  |  |                                                                           
|Intersil S.A.                                                                                                                                                           |  | Belgium                                                                   
|Intersil GmbH                                                                                                                                                           |  | Germany                                                                   
|Intersil Srl                                                                                                                                                            |  | Italy                                                                     
|Intersil Holding GmbH                                                                                                                                                   |  | Switzerland                                                               
|Intersil Europe Sarl                                                                                                                                                    |  | Switzerland                                                               
|Xicor, GmbH                                                                                                                                                             |  | Germany                                                                   
|Intersil Luxembourg Participations Sarl                                                                                                                                 |  | Luxembourg                                                                
|Intersil Swiss Holding Sarl                                                                                                                                             |  | Switzerland/Delaware                                                      
|Intersil Sarl                                                                                                                                                           |  | France