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Altera_Forum
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15 years ago

Help about the connection between IC of voltage 5V and cyclone II

Now I've got a cyclone II(3.3v in doc) device.But I've only got a 5V D-A IC.Can I connect them directly?especially output from 5V IC input foot of cyclone II(3.3V in document).I know the signal outpu...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

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use a clock divider for the IO clock.

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Ever I heard a problem about the clock divided by counter in FPGA is not steady enough .Though I've already given up this solution ,I still want to confirm whether I can use the clock divided by counter for devices directly .For this problem ,I have already seen various of opinions on the internet .