If PE0-PE3 are being used as the analog inputs AIN3-AIN0, and the reference voltage they have is 3.3V, can they withstand 5V? In worst case scenario these inputs can see up to 5V, would this be an issue. Following what the DS says is a bit hard since it's mentioned:
- All GPIOS are 5V tolerant except e.g. PJ0.
- The AINx analog signals are not 5V tolerante and go thorough an isolation circuit before reaching their circuitry.
We also have this appnote that says that 5V shouldn’t be an issue: http://www.ti.com/lit/an/spma053/spma053.pdf.
Can you help out with a definitive answer? They don't need to be working at 5V, as it would be out of the measurable range, they would just need to survive the 5V.
Thanks,
Tadeo