We are using TCA9535 and are loading the output port pins with 4.99k to ground. We need the Voh to be greater than 2.8V. The curves in Figure 14 imply this is not a problem, but the curves do not agree with the electrical specs in section 6.5 which give an output that is as low as 2.6V for an 8 mA load whereas the curves imply it would be more like 3.1 for a 3.3V supply. Can we trust the curves of Figured 14 for our application?