ATSAM3N1BA-AU Просмотр технического описания (PDF) - Atmel Corporation

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Компоненты Описание

производитель

ATSAM3N1BA-AU

ARM-based Flash MCU

Atmel Corporation 

Figure 5-1. Single Supply

Main Supply

(1.8V-3.6V)

VDDIO

VDDIN

VDDOUT

VDDCORE

VDDPLL

I/Os.

ADC, DAC

Voltage

Regulator

Figure 5-2. Core Externally Supplied

Main Supply

(1.62V-3.6V)

Can be the

same supply

ADC, DAC Supply

(3V-3.6V)

VDDCORE Supply

(1.62V-1.95V)

VDDIO

VDDIN

VDDOUT

VDDCORE

VDDPLL

I/Os.

ADC, DAC

Voltage

Regulator

Note:

Restrictions

With Main Supply < 3V, ADC and DAC are not usable.

With Main Supply >= 3V, all peripherals are usable.

Figure 5-3 below provides an example of the powering scheme when using a backup battery.

Since the PIO state is preserved when in backup mode, any free PIO line can be used to switch

off the external regulator by driving the PIO line at low level (PIO is input, pull-up enabled after

backup reset). External wake-up of the system can be from a push button or any signal. See

Section 5.6 “Wake-up Sources” for further details.TFBGA

18 SAM3N Summary

11011BS–ATARM–22-Feb-12

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