Search found 2 matches

by Gondulf
Mon Sep 15, 2003 10:10 am
Forum: General Discussion
Topic: Unused pins on microcontroller
Replies: 3
Views: 1016

Re: Unused pins on microcontroller

Thanks for your help!
by Gondulf
Thu Sep 11, 2003 3:10 pm
Forum: General Discussion
Topic: Unused pins on microcontroller
Replies: 3
Views: 1016

Unused pins on microcontroller

Hi!<p>I'm using an 8051 for a communication board but I am not using all the port lines.
Some lines are open-collector types and others have internal pull-ups.<p>Do I need to connect all of those unused pins to a pull-down resistor? The board will be operating in a very noisy environment.<p>Thanks!