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You are here: Home / Replies / If there is internal pull ups

If there is internal pull ups

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Microcontroller › 8051 › pull up resistor › If there is internal pull ups

July 2, 2012 at 11:55 pm #8182
Anonymous
Guest

If there is internal pull ups to port 1, 2, 3 , then why we connect external pullups to port 1, 2, 3?????? and what happend if there is not????

 

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