The Data Sheet specifies the IO Pin Current capability only in Table 7, "Limiting values."

As usual, the Limiting (or "Absolute Maximum") values are defined as, "This is a stress rating only and functional operation of the device at these or any conditions other than those described in Table 8 'DC electrical characteristics' and Table 9 'AC characteristics' of this specification are [sic] not implied." (my emphasis).

But I can't see the operational current ratings specified anywhere else in the Data Sheet. :-(

In fact, the test values for the Table 8 IO Pin output voltages, and the bullet points at the start of the document, suggest that the so-called "Limiting" value (20mA) is, in fact, the operational rating!

So, does anyone have any experience (or inside info) to confirm whether it is OK to run up to five IO pins at 20mA? - again assuming that the 100mA whole-device "Limiting" value is also actually the operational rating!

Also, what would the HIGH-level output voltage be at this current? - the Data Sheet just says "TBD!" :-(