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???
06/20/03 16:56
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#48914 - RE: Port 0 (Back post),erik
Responding to: ???'s previous message

Hi Erik
you are correct ofcourse but when i read
------------------------------------------------
or an AT89c51 the Ioh for port 0 when in external memory access mode is specified as -80uA with min Voh as .9Vcc
and -300uA with min Voh .75Vcc
and -800uA with min Voh 2.4V

Should these values be taken while calculating the port 0 pullup (if we want to use port 0 as an Output port)??
-------------------------------------------------
my impression was he trying to drive a BJT like load.

Pranav



List of 18 messages in thread
TopicAuthorDate
Port 0 (Back post)            01/01/70 00:00      
   RE: Port 0 (Back post)            01/01/70 00:00      
   RE: Port 0 (Back post)            01/01/70 00:00      
   More details needed!            01/01/70 00:00      
   RE: Port 0 (Back post)            01/01/70 00:00      
      RE: Port 0 (Back post)            01/01/70 00:00      
         RE: Port 0 (Back post)            01/01/70 00:00      
            RE: Port 0 (Back post)            01/01/70 00:00      
            RE: Port 0 (Back post)            01/01/70 00:00      
               RE: Port 0 (Back post)            01/01/70 00:00      
   RE: Port 0 (Back post)            01/01/70 00:00      
      RE: Port 0 (Back post),erik            01/01/70 00:00      
         It's not your mistake, Pranav...            01/01/70 00:00      
   RE: Port 0 (Back post)            01/01/70 00:00      
      RE: Port 0 (Back post)            01/01/70 00:00      
         copper trace capacitance            01/01/70 00:00      
            RE: copper trace capacitance            01/01/70 00:00      
         RE: Port 0 (Back post)            01/01/70 00:00      

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