|  | 
    
     |   |  
     | 
 
 
 
  | 
    | Partname: | DS21448 |  | Description: | 3.3V E1/T1/J1 Quad Line Interface |  | Manufacturer: | Dallas Semiconductor |  | Datasheet: | PDF (1.16M). Click here to download *)
 |  | The DS21448 is a quad-port E1 or T1 line interface unit (LIU) for short-haul and long-haul applications. It incorporates four independent transmitters and four independent receivers in a single 144-pin PBGA or 128-pin LQFP package. |  |  Click here to download DS21448 Datasheet*)
 |  |  |  | *)Datasheets downloading from ChipDocs is only for our members (paid service). REGISTER NOW for your membership. |  |  |  |