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    | Partname: | SP490ES |  
    | Description: | Full duplex RS-485 transceivers |     
    | Manufacturer: | Sipex Corporation |  
    | Package: | DIP |  
    | Pins: | 8 |  
    | Oper. temp.: | -40 to 85 |  
    | Datasheet: | PDF (94K). Click here to download *) |  
    The SP490 is a low power differential line driver/receiver meeting RS-485 and RS-422 standards up to 5Mbps. The SP491 is identical to the SP490 with the addition of driver and receiver tri-state enable lines. Both products feature 200mV receiver input sensitivity, over wide common mode range. The SP490 is available in 8-pin plastic DIP and 8-pin NSOIC packages for operation over the commercial and industrial temperature ranges. The SP491 is available in 14-pin DIP and 14-pin NSOIC packages for operation over the commercial and industrial temperature ranges.  |  
    
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    Click here to download SP490ES Datasheet*) | 
  
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