Hi Champ,
From data sheet the group 2 IO maximum output current are +/-8mA.
customer outside circuit is RC: R is 100OHM, C is 1uF.
the current waveform when F28335 IO output 3.3V like following:
The current will drop from 33mA to 8mA with in 150uS, may i know this case will lead the PIN be damaged or not?