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What type of converter is needed for rs232 <=>ttl (3.3

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proiettile

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Help max232

Hi all,
I want to build a simple rs232 <=> ttl (3.3V).
What type of converter can I use?
Thanks.
 

Re: Help max232

For 3.3V there are special RS-232 drivers available.
Try:
ADM1385ARS
ADM3202ARU
LTC1386CS , or similar ..
or you can use any of MAX232 compatibile drivers but you will have to convert from 5V to 3.3V. For such a conversion you can try the attached circuit .. This is probably the cheapest option ..
Regards,
IanP
 

Re: Help max232

I use max3232
I like the very good ESD protection of maxim driver chips.
 

Re: Help max232

Hi

does anyone in need of max232 ? I can trade my max232's with some of your other devices, wanna trade ?

Thanks

Added after 2 minutes:

Hi IanP

Can I have some of your point ? I need it to download some E-Books that might
be useful for my science fair project .

Thanks
 

Re: Help max232

If you only need one channel try the ADM101E from analog. Small foot print and needs one charge pump cap.
 

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