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ICE40HX chips might have 5V tolerant I/O #8

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kiwidrew opened this issue Aug 28, 2021 · 1 comment

kiwidrew commented Aug 28, 2021

If you're willing to live a little bit dangerously the second 74ALVC164245 (U5) may not be necessary because it appears that the HX4K has 5V tolerant I/O pins despite what the datasheet claims.

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schlae commented Nov 5, 2021

I hesitate to design it this way--the FPGA won't last as long due to possible electromigration effects.

schlae closed this as completed

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