HDMI unused pins

I would not float these inputs.  Please connect through an appropriate pullup to the local rail not exceeding voltage requirements.  So, I would tie the HPD input (from the receiver) to 3.3 through a 10k ohm resistor,  a 47k pullup to 3.3 on the SCL/SDA input/output  for the SCL/SDA sink and a 47k to 5V for the SCL/SDA(1,2).

Can SCL/SDA(1,2) be pulled up to 3.3V instead of 5V?

Yes

One more thing on these parts. I was looking for the product markings. It used to be a pop up from the product folders. Now there is a new link. The only thing it shows is just the part number, not date codes etc. is this correct? Am I missing something?

I found a link for it:

that worked, must of had my pop-up blocker on.  Seems like the product folder is the way to go so I will jsut use that. Is the part marking lookup page something that still needs populating? The bottom of the product folder takes you here.

http://focus.ti.com/general/docs/partmarking/partmarkinghome.jsp

Wayne,

I interpret that page to be a "reverse" lookup page - you have a part wnd know the marking and what to figure out what part it is...