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LTC3265 No Connect Pins - TSSOP-20

I am using the LTC3265 in the 20-Lead TSSOP package to generate +-5V from a 5V input.

The TSSOP package has NC pins 1, 11.  The datasheet suggests these pins should be left floating or connected to ground.

However the Recommended Layout in Figure 6 seems to shows these NC pins connected to the adjacent pins (pins 1 and 2 together, pins 11 and 12 together).

This makes routing to the pins 2 and 12 much easier.

My question is:

Is it ok to connect these NC pins to the adjacent pins as it seems in the recommended layout? (since these pins are not connected to the die)

Or is it required to leave these pins floating / or connected to ground?

Best Regards,

Curtis

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