Mike you missed this part
This is the Absolute Maximum on a pin that's doesn't mean all 23 can be at that level and is a bad idea to get to thinking you can
Quote
DC Current per I/O Pin ............................................... 40.0 mA
Read the fourth and fifth word there you didn't read my whole post.
I didn't miss read anything I know for a fact what these chips can do and can't but you here all the time That this chip can sink 40 mA a pin that's a PIN not a port of PINS
So I was letting OP know that he needs to watch that.