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LMH6881: LMH6881 NC pins

Part Number: LMH6881
Other Parts Discussed in Thread: LMH6882

Hi!

I am preparing a board using the LMH6881 and I've found some conflicting information about the use of NC pins.

On the datasheet, pins 1, 14 and 18 are marked as NC, with no further instructions on connection. This thread here actually recommends floating (not grounding) although no further clarification is offered.
Schematics for TIDA-00094 reference design use the same pinout.

However, the evaluation module LMH6881EVAL shows a different pinout (pin names DC1, DCOC, DC2 respectively) and connection.

Could you clarify the correct approach for this part and/or any compatibility recommendations?

Thank you!