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    | Partname: | LS256D |  
    | Description: | Telephone speech circuit with multifrequency tone generator interface |     
    | Manufacturer: | SGS-Thomson Microelectronics |  
    | Package: | SO |  
    | Pins: | 20 |  
    | Oper. temp.: | -45 to 70 |  
    | Datasheet: | PDF (84.6K). Click here to download *) |  
    The LS256 is a monolithic integrated circuit in 16lead dual in-line and SO20 plastic packages to replacethe hybridcircuit in telephoneset.It workswith the same type of transdurcers for both transmitter and receiver (typically piezoceramic capsules, but  |  
    
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    Click here to download LS256D Datasheet*) | 
  
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