5V tolerant I/O on MCF5223x ?

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5V tolerant I/O on MCF5223x ?

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lambtron
Contributor I
Is the general purpose i/o on mcf5223x microcontrollers 5V tolerant?
 
Also, where can I find this and other electrical specs for this processor family?  I have looked in the Reference Manual and many other available documents but can't find electrical specs anywhere.
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DrSeuss
Contributor I
While not strictly 5v tolerant - 5V signals can be connected as long as there is a series resistor to limit the current flow into the pin. The pin will clamp the input to 3.6V, as long as the resistor limits the input current (<2mA) 5V signals can connect to the 3.3v pins.
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Nouchi
Senior Contributor II
Hello,

Unfortunately, MCF5223x are not 5V I/O tolerant see:
http://www.freescale.com/files/32bit/doc/data_sheet/MCF52235DS.pdf
chapter 2.3 table 22


Emmanuel
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