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    | Partname: | 54LS168 |  
    | Description: | 54LS168 Synchronous Bi-Directional BCD Decade Counter |     
    | Manufacturer: | National Semiconductor |  
    | Datasheet: | PDF (131K). Click here to download *) |  
    The 54LS168 is a fully synchronous 4-state up down counter featuring a preset capability for programmable operation carry lookahead for easy cascading and a U D input to control the direction of counting It counts in the BCD (8421) sequence and all state changes whether in counting or parallel loading are initiated by the LOW-to-HIGH transition of the clock  |  
    
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    Click here to download 54LS168 Datasheet*) | 
  
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