7.1 Power Supplies
The following table defines the power supply rails of the SAM E70/S70/V70/V71 .
| Name | Associated Ground | Powers |
|---|---|---|
| VDDCORE | GND | Core, embedded memories and peripherals. |
| VDDIO | GND | Peripheral I/O lines (Input/Output Buffers), backup part, 1 Kbytes of backup SRAM, 32 kHz crystal oscillator, oscillator pads. For USB operations, VDDIO voltage range must be between 3.0V and 3.6V. |
| VDDIN | GND, GNDANA | Voltage regulator input. Supplies also the ADC, DAC, and analog voltage comparator. |
| VDDPLL | GND, GNDPLL | PLLA and the fast RC oscillator. |
| VDDPLLUSB | GND, GNDPLLUSB | UTMI PLL and 3 MHz to 20 MHz oscillator. |
| VDDUTMII | GNDUTMI | USB transceiver interface. Must be connected to VDDIO. |
| VDDUTMIC | GNDUTMI | USB transceiver core. |