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Altera_Forum
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14 years ago

EMP1270 BGA burning up

On a new design we have a repeated problem that the EMP1270 developes a short between pwr and gnd and smokes. Single 3.3v supply operation, all other devices on board on same supply. The only exposed...
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Altera_Forum
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14 years ago

Does this happen with a blank CPLD, or a programmed CPLD?

Quartus has unused pin options that could be set incorrectly in your design. Check the setting in the device options.

What happens when you power the design from a lab supply?

If you want to test the limits of a CPLD, then you could carefully ramp up a current limiting lab supply until the device draws more current, or dies ... at least then you would know how high a voltage the device can tolerate.

Cheers,

Dave