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PIC16f877a that operates with 3.3v supply

 
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Chicky



Joined: 04 Aug 2005
Posts: 21

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PIC16f877a that operates with 3.3v supply
PostPosted: Thu Dec 22, 2005 2:38 am     Reply with quote
hello...

does anyone here know which pic16f877a package that can operate with 3.3v suply and i/o level at 3.3volts? i have a problem interfacing pic with rf txrx chip that i've bought since the chip operates at 3.3v and can only receive signal at that level... suggestion anyone?

thankx a zillion~!
kender



Joined: 09 Aug 2004
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Location: Silicon Valley

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PostPosted: Thu Dec 22, 2005 3:00 am     Reply with quote
The LF series of PICs operate at low voltages. There are 18LF452 and 18LF4520, which should be pin-for-pin compatible with 16F887.

You can add a simple voltage divider or a 5V-tolerant buffer, which will convert 5V ot 3.3V.
PCM programmer



Joined: 06 Sep 2003
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PostPosted: Thu Dec 22, 2005 11:49 am     Reply with quote
Quote:
does anyone here know which pic16f877a package that can operate with 3.3v suply and i/o level at 3.3volts?

Quote:
There are 18LF452 and 18LF4520, which should be pin-for-pin compatible

Go to http://www.digikey.com/ and search for: 16LF877A
They stock four package types for the LF version.
The LF version has a maximum speed of 10 MHz at 3.3 volts.
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