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???
07/02/03 17:13
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 		 #49880 - RE: Short Timing delays
Responding to: ???'s previous message
hi erik,

i read on a MPU oriented book that to AND two signals (perticularly when the o/p are active low) the bubbled input gate convention is used.

for example if you want to AND the ~X and ~Y and want an output that is also active low. folowing has to done

1. invert the ~X ,~Y
2. AND the result (i.e. X,Y)
3. invert the output again

first two steps form a NOR gate(or input bubbled AND)and thrird step will cancels the bubble at output and it becomes and simle OR operation. in other word inactivate the output if either input is inactive.


abhishek







List of 56 messages in thread
TopicAuthorDate
Short Timing delays            01/01/70 00:00      
   RE: Short Timing delays            01/01/70 00:00      
      Applications of 80C320            01/01/70 00:00      
         RE: Applications of 80C320            01/01/70 00:00      
   RE: Short Timing delays            01/01/70 00:00      
      RE: Short Timing delays            01/01/70 00:00      
         RE: Short Timing delays            01/01/70 00:00      
            RE: Short Timing delays            01/01/70 00:00      
               RE: Short Timing delays            01/01/70 00:00      
                  RE: Short Timing delays            01/01/70 00:00      
                     RE: Short Timing delays            01/01/70 00:00      
                        RE: Short Timing delays            01/01/70 00:00      
                           RE: Short Timing delays            01/01/70 00:00      
                              RE: Short Timing delays            01/01/70 00:00      
                                 RE: Short Timing delays            01/01/70 00:00      
                                    RE: Short Timing delays            01/01/70 00:00      
                              RE: Short Timing delays            01/01/70 00:00      
                                 RE: Short Timing delays            01/01/70 00:00      
                                    RE: Another interpretation            01/01/70 00:00      
      RE: Short Timing delays            01/01/70 00:00      
         Inverter string delay            01/01/70 00:00      
            RE: Inverter string delay            01/01/70 00:00      
               RE: Inverter string delay            01/01/70 00:00      
   RE: Short Timing delays            01/01/70 00:00      
      RE: Short Timing delays            01/01/70 00:00      
         RE: Short Timing delays            01/01/70 00:00      
            RE: Short Timing delays            01/01/70 00:00      
               RE: Short Timing delays            01/01/70 00:00      
                  RE: Short Timing delays            01/01/70 00:00      
                     RE: Short Timing delays            01/01/70 00:00      
                     RE: Short Timing delays            01/01/70 00:00      
   RE: Short Timing delays - DeMorganite            01/01/70 00:00      
   RE: Short Timing delays            01/01/70 00:00      
      RE: Short Timing delays            01/01/70 00:00      
         RE: Short Timing delays            01/01/70 00:00      
   RE: Short Timing delays            01/01/70 00:00      
      RE: Short Timing delays            01/01/70 00:00      
         RE: Short Timing delays            01/01/70 00:00      
            RE: Short Timing delays            01/01/70 00:00      
   RE: Short Timing delays            01/01/70 00:00      
      RE: Short Timing delays            01/01/70 00:00      
         RE: Short Timing delays            01/01/70 00:00      
            RE: Short Timing delays            01/01/70 00:00      
         Bubbles            01/01/70 00:00      
   RE: Short Timing delays            01/01/70 00:00      
      RE: Short Timing delays- Erik            01/01/70 00:00      
         RE: Short Timing delays- Erik            01/01/70 00:00      
            RE: Short Timing delays- Abhishek            01/01/70 00:00      
               RE: Short Timing delays- Abhishek            01/01/70 00:00      
   RE: Short Timing delays            01/01/70 00:00      
      RE: Short Timing delays            01/01/70 00:00      
   RE: Short Timing delays            01/01/70 00:00      
      RE: Short Timing delays            01/01/70 00:00      
   RE: Short Timing delays            01/01/70 00:00      
      RE: Short Timing delays- Dave            01/01/70 00:00      
      RE: Short Timing delays            01/01/70 00:00      

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