AVR-Chat

Thanks.  I was figuring on 5K, but I'll drop it to 1.2 K.  I'm running it at
3.3 V so 1.2 K still keeps the drain slightly under 3 mA, which is another
spec isn't it?   Or would you choose something else given the 3.3 V?   Steve

 

From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf
Of Ken Holt
Sent: Tuesday, March 31, 2009 12:00 PM
To: AVR-Chat@yahoogroups.com
Subject: Re: [AVR-Chat] i2c and twisted pair

 

Also, be sure to keep your I2C pullup resistors (Rp) as low as possible,
down as far as 1K is allowed by the spec. This will help help your
rise-time and speed with that long shield capacitance. Also it may
help your noise immunity in that boat-electrical environment.






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