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Author Topic: Wishing for mainboard with new component layout for A1200  (Read 5804 times)

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Re: Wishing for mainboard with new component layout for A1200
« on: July 13, 2008, 02:29:41 PM »
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alexh wrote:
I'm unsure... some of the Freescale documentation says 5v I/O in some places and 3.3v I/O in other places.

I'm wondering if it does both?


If the 060 doesn't drive the I/O at 5v, the 68k support devices that it needs to interface with wouldn't work!?
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Re: Wishing for mainboard with new component layout for A1200
« Reply #1 on: July 13, 2008, 04:16:18 PM »
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alexh wrote:
Not if it is just digital. You should look up TTL thresholds. 3.3v is still a HIGH.


So the the 060 could happily run at 3.3v and simply tolerate 5v inputs...
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