5 Power Domains
The AVR® EA Family devices have several power domains with the following power
supply pins:
| Domain | Pin | Description |
|---|---|---|
| VDD / VDDIO | VDD | Powers I/O lines, XOSCHF and the internal voltage regulator |
| VDDANA | VDD | Powers I/O lines, XOSC32K (external 32.768 kHz oscillator) and the analog peripherals |
The same voltage must be applied to all VDD pins. This shared voltage is referred to as VDD in the data sheet.
The ground pins (GND) must be conned to the same ground plane.
For recommendations on layout and decoupling, refer to the Hardware Guidelines section.