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From: "V G" <x.solarwind.x@gmail.com>
Sent: Wednesday, July 21, 2010 11:14 PM
To: "PICLIST" <piclist@mit.edu>
Subject: [PIC] Running a PIC near it's maximum rated frequency

> Hey all,
>
> I'm planning to use an external crystal oscillator (not a crystal as a
> discrete component, but a crystal oscillator IC) for my
> dsPIC33FJ128GP802. The dsPIC is rated to run at a maximum of 40 MIPS
> on 3 V - 3.3 V. Would running it with a 40 MHz crystal oscillator be
> safe? As in, would it be reliable to run the dsPIC at it's maximum
> rated frequency?

According to the data sheet it can use an external clock up to 64MHz, and a 
crystal up to 40MHz, so I would guess it should be fine as long as 
reasonable precautions are taken with regard to trace length, capacitance 
etc.
 


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