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    | Partname: | MC74ACT640DWR2 |  
    | Description: | Octal Bidirectional Transceiver with 3-State Outputs |     
    | Manufacturer: | ON Semiconductor |  
    | Package: | SOIC |  
    | Pins: | 20 |  
    | Datasheet: | PDF (174K). Click here to download *) |  
    The MC74AC640/74ACT640 octal bus transceiver is designed for asynchronous two-way communication between data buses. The device transmits data from bus A to bus B when T/R = HIGH, or from bus B to bus A when T/R = LOW. The enable input can be used to disable the device so the buses are effectively isolated. Bidirectional Data Path  |  
    
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    Click here to download MC74ACT640DWR2 Datasheet*) | 
  
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