SAM3U Datasheet, PDF (17/59 Pages) ATMEL Corporation – AT91SAM ARM-based Flash MCU

Figure 5-2. Core Externally Supplied
VDDBU
VDDUTMI
VDDANA
Main Supply (1.62V-3.6V)
VDDIO
VDDIN
VDDOUT
VDDCORE Supply (1.62V-1.95V) _VDDCORE
VDDPLL
SAM3U Series
Voltage
Regulator
Note:
Restrictions
With Main Supply < 2.0 V, USB and ADC are not usable.
With Main Supply ≥ 2.4V and < 3V, USB is not usable.
With Main Supply ≥ 3V, all peripherals are usable.
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6430ES–ATARM–22-Aug-11