7.1 Power Supplies

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

Table 7-1. Power Supplies
NameAssociated GroundPowers
VDDCOREGNDCore, embedded memories and peripherals.
VDDIOGNDPeripheral 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.
VDDINGND, GNDANAVoltage regulator input. Supplies also the ADC, DAC, and analog voltage comparator.
VDDPLLGND, GNDPLLPLLA and the fast RC oscillator.
VDDPLLUSBGND, GNDPLLUSBUTMI PLL and 3 MHz to 20 MHz oscillator.
VDDUTMIIGNDUTMIUSB transceiver interface. Must be connected to VDDIO.
VDDUTMICGNDUTMIUSB transceiver core.