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Yes, what you are seeing in both the datasheets is actually correct. Both devices do not have identical pin-outs .There is difference in power supply pins for both the devices (i.e. CY8C4146LQE-S433 and CY8C4146LQI-S433) which you can observe in datasheets . Also, it's should be noted that CY8C4146LQI -S433 is Industrial grade (device name ending with 'I') where as CY8C4146LQE-S433 is Automotive Grade (device name ending 'E','A' and 'S').
thank you for the quick response!
Ok - got it! I was just trying to be smart and do the prototype with the industrial grade device and move to automotive grade later on. Obviously that plan backfired.