Cyclone V: leakage current of Vref pins

Hello,

I'm designing a very compact design with a 5CEFA4 Cyclone V FPGA and a single DDR3 chip.

Following the Micron and Intel guidelines, I chose to not use VTT termination and to use only a simple resistor divider for Vref generation. I've seen that in other working designs, so I'm pretty confident all will work as expected.

To effectively choose the divider resistance value I need to know the max leakage current of Vref pin of the FPGA...anyone knows where I can find it?

On the Cyclone V Datasheet I see only the I/O pins leakage current, which is quite high, +-30uA, compared to the +-1uA of the DDR3 chip.