Exhibit 21

INTERSIL CORPORATION

SUBSIDIARIES OF REGISTRANT

AS OF JANUARY 01, 2010



|                                                                                                                              |  |                                                                  
|----------------------------------------------------------------------------------------------------------------------------- |  | -----------------------------------------------------------------
|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 Planet ATE, Inc. D2Audio Corporation Kenet, Inc. Zilker Labs, Inc. |  | DelawareDelaware California California Delaware Delaware Delaware
|Intersil Swiss Holding Sarl**                                                                                                 |  | Delaware/Switzerland                                             
|Quellan, Inc.                                                                                                                 |  | Delaware                                                         
|Quellan International, Inc.                                                                                                   |  | 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                                                      
|Intersil International Operations Sdn. Bhd.                                                                                   |  | Malaysia                                                         
|Intersil China Holding Limited                                                                                                |  | Hong Kong                                                        
|Intersil (Wuhan) Company Ltd.                                                                                                 |  | PRC                                                              
|Europe                                                                                                                        |  |                                                                  
|Intersil S.A.                                                                                                                 |  | Belgium                                                          
|Intersil GmbH                                                                                                                 |  | Germany                                                          
|Intersil Srl                                                                                                                  |  | Italy                                                            
|Intersil Holding GmbH                                                                                                         |  | Switzerland                                                      
|Intersil Europe Sarl                                                                                                          |  | Switzerland                                                      
|Xicor, GmbH                                                                                                                   |  | Germany                                                          
|Intersil Swiss Holding Sarl                                                                                                   |  | Switzerland/Delaware                                             



|** | Dual incorporation
|-- | ------------------