Does a thermal pad of the QFN package in the NuMicro® NUC505 series have to be connected to ground?

[Dylan Hsieh]

The NuMicro® NUC505 series includes three part numbers with the QFN package, as listed below:

• NUC505YLA

• NUC505YLA2Y

• NUC505YO13Y

When using these part numbers, the thermal pad has to be connected to ground, as the ground of digital circuit, to ensure a stable internal potential.