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    | Partname: | IN74HC123 |  
    | Description: | DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR |     
    | Manufacturer: |  |  
    | Datasheet: | PDF (160K). Click here to download *) |  
    The IN74HC123 is identical in pinout to the LS/ALS123. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs. There are two trigger inputs, A INPUT (negative edge) and B INPUT (positive edge). These inputs are valid for rising/falling signals.  |  
    
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    Click here to download IN74HC123 Datasheet*) | 
  
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