Power Supplies

The following table defines the power supply rails of the SAM E70/S70/V70/V71 .

Table 1. Power Supplies
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.