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???
07/11/06 21:06
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 		 #120038 - more info
Responding to: ???'s previous message
Unfortunately, I don't know exactly what speed the RS-232 interface is running (the board is for a customer), and neither do I have the spec for the speed (and direction) of the programming port.

So, since I don't know those variables, it would probably be best to use some sort of 'active' protection (TVS, tranzorb, etc), versus a cap/resistor combination?

I also was not planning on using any buffers on the programming port, since I'm honestly not sure which direction (or bi-directional?) the pins are.

Thanks,
-Dave

List of 31 messages in thread
TopicAuthorDate
ESD Questions            01/01/70 00:00      
   Discharge model            01/01/70 00:00      
      150pF, +-15kV, 150Ohm            01/01/70 00:00      
         hmm            01/01/70 00:00      
   ESD            01/01/70 00:00      
   many ways and ...            01/01/70 00:00      
      more info            01/01/70 00:00      
         Is it a secret ...            01/01/70 00:00      
            using the F041            01/01/70 00:00      
   Some answers...            01/01/70 00:00      
      thanks!            01/01/70 00:00      
         What means \"quiet\" here...            01/01/70 00:00      
            thanks again            01/01/70 00:00      
   did you miss the FAQ            01/01/70 00:00      
      immunity levels            01/01/70 00:00      
      Do you like point 7, Erik??            01/01/70 00:00      
         I've only got 5 fingers            01/01/70 00:00      
   point 7 of the FAQ you mentioned            01/01/70 00:00      
      absolutely not, just the wire doing the job provid            01/01/70 00:00      
         I don\'t like it either!            01/01/70 00:00      
            Corrected, please read again            01/01/70 00:00      
            I would not do that            01/01/70 00:00      
               No connection, no shielding!            01/01/70 00:00      
                  with the enclosure connected to 'protection ground            01/01/70 00:00      
                     ???            01/01/70 00:00      
                        Ok, try this way            01/01/70 00:00      
                     I cannot believe that!            01/01/70 00:00      
                        language, I hope            01/01/70 00:00      
                           Come on, Erik, please...            01/01/70 00:00      
                              I'm no expert, but            01/01/70 00:00      
   Have fun, Erik!            01/01/70 00:00      

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