cctalk Digest, Vol 70, Issue 3

Chuck Guzis cclist at sydex.com
Wed Jun 3 11:31:45 CDT 2009


On 3 Jun 2009 at 12:10, Dave McGuire wrote:

>    The MAX232, if memory serves, is specced at 10V but usually tops 
> out at 8-9V in my experience.  I sure do love those chips. :)

I get about +/-10 out of the MAX232Ns from TI, but I use 10 uF/25v 
caps instead of 1uF on them (just have more of them in my hellbox).  
There are also the cap-less models from Maxim (can't recall the part 
numbers) that are pretty tempting.

Some modern equipment gives you +5/0 for "RS232" levels.  My DTV set-
top-box with a DE9 on the rear panel  labeld "RS232" is such an 
example.

Although, I suppose we're going to have to start calling it "TIA-
232".

--Chuck




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