sam3s16 ATMEL Corporation, sam3s16 Datasheet - Page 11

• Manufacturer Part Number: sam3s16
• Description: At91sam Arm-based Flash Mcu
• Manufacturer: ATMEL Corporation

11117AS–ATARM–12-Jul-11
Figure 5-1.
Note:
Figure 5-2.
Note:
Figure 5-3
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”
Restrictions
For USB, VDDIO needs to be greater than 3.0V
For ADC, VDDIN needs to be greater than 2.0V
For DAC, VDDIN needs to be greater than 2.4V
Restrictions
For USB, VDDIO needs to be greater than 3.0V
For ADC, VDDIN needs to be greater than 2.0V
For DAC, VDDIN needs to be greater than 2.4V
below provides an example of the powering scheme when using a backup battery.
Single Supply
Core Externally Supplied
ADC, DAC, Analog
Comparator Supply
VDDCORE Supply
(1.08V-1.32V)
Main Supply
(1.62V-3.6V)
Main Supply
(1.8V-3.6V)
Can be the
same supply
for further details.
VDDIO
VDDIN
VDDOUT
VDDCORE
VDDPLL
VDDIO
VDDIN
VDDOUT
VDDCORE
VDDPLL
SAM3S16 Preliminary
Analog Comp.
Transceivers.
ADC, DAC
Regulator
Analog Comp.
Voltage
Transceivers.
Regulator
ADC, DAC
USB
Voltage
USB
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