We do this by selecting our package from the package list, and then using the 'Connect' button just beneath the list:
The symbol pins are listed on the left-hand column, the middle column lists the pads in our package, and the final column is used to show 'connected' pins and pads.
To connect a pin and a pad, simply select your pin, then select the appropriate pad, and click the 'Connect' button.
- Pins 1 and 2 (as indicated in the datasheet footprint) are GND
- Pin 3 is IO
- Pin 4 is VCC