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    | Partname: | BU34440 |  
    | Description: | Single-chip 4-bit microcontroller for CD-DA |     
    | Manufacturer: | ROHM Co. |  
    | Package: | SOP28 |  
    | Pins: | 28 |  
    | Oper. temp.: | -25 to 75 |  
    | Datasheet: | PDF (148K). Click here to download *) |  
    The BU34440 is a single-chip 4-bit microcontroller designed for CD-DA and contains parallel I / O, serial I / O, timer / counter and all other functions required for CD control in a single compact package. FApplications  |  
    
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    Click here to download BU34440 Datasheet*) | 
  
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