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Old 11-28-2007, 12:38 AM
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Default Xilinx IO leakage when not powered

HI

I have a Xilinx Spartan3e IO pin connected to a system bus signal. The
system bus signal can be active (3.3v/0v) even when the Spartan device
is powered off. When the signal is at 3.3, I suspect the ESD
protection diode between pad and VCCO on the Spartan IOB is going to
turn on. Does anybody know what would be the current drawn?

-Dipankar
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