Yahoo Groups archive

AVR-Chat

Index last updated: 2026-04-28 22:41 UTC

Message

Re: [AVR-Chat] 5V - 3V interfacing

2007-01-21 by David VanHorn

On 1/21/07, Thomas Keller <tjkeller1@alltel.net> wrote:
>
>    At a guess,m substitute a single 3.3 V zener diode for each voltage
> divider.    Ought to work (I think).   Only potential problem I can see
> is it could end up overloading the AVR outputs.


You'll end up with each output trying it's hardest to pull up the zener.
Also know this:  Zeners have bad knees.

The two resistors is a very good solution.


[Non-text portions of this message have been removed]

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.