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rc522

 
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balaji



Joined: 30 Mar 2010
Posts: 21

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rc522
PostPosted: Wed Aug 03, 2016 2:59 am     Reply with quote
I have project to work with RC522. Whether i should go for PIC LF series due to 3.3V issue.
Ttelmah



Joined: 11 Mar 2010
Posts: 19545

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PostPosted: Wed Aug 03, 2016 3:51 am     Reply with quote
Honestly, these days, the most powerful PIC's are 3.3v, and more peripherals are 3.3v, than 5v.
It is perfectly possibly to use a 5v PIC with the 522, by adding suitable buffers, but why would you want to?. The only worthwhile reason would be that you have something more complex to drive, that is specifically 5v. Going 3.3v, also means only one supply needed.
guy



Joined: 21 Oct 2005
Posts: 297

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PostPosted: Wed Aug 03, 2016 3:05 pm     Reply with quote
Just to be clear, many (most?) of the F-series 5V PICs are capable of working at 3.3V also.
temtronic



Joined: 01 Jul 2010
Posts: 9244
Location: Greensville,Ontario

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PostPosted: Wed Aug 03, 2016 3:10 pm     Reply with quote
maybe, but NOT necessarily at FULL speed ! The Devil's in the details....like 400-500 pages of it these dayze !!

Jay
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