Re: Thanks for the Verilog help

From: didier derny <>
Date: Mon, 16 Dec 2013 14:20:57 +0100
Message-ID: <>

5v tolerant..

you also have:

his brother:

and even his bigger brother :)

I'm using several, the problem is rather mechanical :)
a little too high  but it is possible to buy it without the connectors 
and only install what is necessary.


On 14/12/2013 21:26, wrote:
> On 2013-12-14, at 21:14, Jim Brain <> wrote:
>>> Datasheet says it “accepts 5V”, but “has 3.3V or 2.5V output capability”. The board doesn’t seem to provide any level conversion. How does this work in your setup?
>> Since 3V3 will support TTL levels (0 < .8V, H>2.0V, or maybe it's 2.4V...) it seems to work fine.  EasyFlash3 uses the same IC, and no level shifters, and works fine (well, except for one revision of the 64 mobo that drives RESET via a 555 without a current limiting resistor, meaning drivng reset from the expansion port requires a switch or something that can overpower the 555, but that's not a 3V3 IC's issue).
> I see. I am not sure what the problem is and if it has anything to do with the 3V3 but EasyFlash3 doesn’t really work when plugged into SX-64. I asked skoe about it but he probably didn’t find time to investigate it yet.
> Anyway nice to see that you successfully entered the CPLD zone. Good luck, Jim.
> P. S. Please keep at least in the back of your head the atapi stuff we talked about ;-)

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Received on 2013-12-16 14:00:05

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