Lpc2000

Leon Heller wrote:

>  
>
>>From: "acetoel" <acetoel@...>
>>Reply-To: lpc2000@yahoogroups.com
>>To: lpc2000@yahoogroups.com
>>Subject: [lpc2000] MAX3232 and MAX232
>>Date: Sun, 07 Nov 2004 16:50:26 -0000
>>
>>
>>
>>Hello...
>>I'm makign my own board for LPC. May I used a Max232 instead of the
>>MAX3232 that everybody use? I'm taking in consideration that LPC
>>I/O's are 5V tolerant...
>>    
>>
>
>
>I've had a MAX202 working OK at 3.3V, so a MAX232 will probably be OK. The 
>MAX3232 would be best, if you can get one, as it will be within its spec.
>
>Leon
>
>
>
>
>
> 
>Yahoo! Groups Links
>
>
>
> 
>
>
>
>
>  
>
MAX232 and MAX202 may work but RS232 voltage levels (and currents) 
aren't guaranteed so it is not design a board using MAX202 and MAX232 to 
work at a nominal level under +5V. You have to read carefully datasheet 
and see output voltage swing in function of Vcc and you may see that may 
drop down to 4.5V that is a very bad value.


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