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Altera_Forum
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8 years ago

Routing a 5V signal through a 3,3V Cpld. Is the output 5V or 3,3V?

Hi, I'm using an old Altera Cpld in a project, a Max 7000 series, which needs a 3,3V Vcc but the IOs are 5V compatible. So, if I put a 5V input IO and route it to other output IO, this output w...
Altera_Forum's avatar
Altera_Forum
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8 years ago

As the CPLD is powered by 3.3V, the outputs cannot be higher voltage than these 3.3V ;-)