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Atmel Xplained Pro Evaluation Kit ATSAMD20-XPRO ATSAMD20-XPRO Hoja De Datos

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Atmel | SMART SAM D20 [DATASHEET]
Atmel-42129K–SAM-D20_datasheet–06/2014
32.8
Analog Characteristics
32.8.1 Voltage Regulator Characteristics
Table 32-12. Voltage Regulator Electrical Characteristics
Note:
Supplying any external components using V
DDCORE
 pin is not allowed to assure the integrity of the core supply voltage.
Table 32-13. Decoupling requirements
32.8.2 Power-On Reset (POR) Characteristics
Table 32-14. POR Characteristics
Figure 32-2. POR Operating Principle
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
V
DDCORE
DC calibrated output voltage
Voltage regulator 
normal mode
1.1
1.23
1.30
V
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
C
IN
Input regulator capacitor, 
between V
DDIN
 and GND
I
-
1
-
µF
C
OUT
Output regulator capacitor, 
between V
DDCORE
 and GND
-
1
-
µF
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
V
POT+
Voltage threshold on V
DD
 
rising
I
V
DD
 falls at 1V/ms or slower
1.27
1.45
1.58
V
V
POT-
Voltage threshold on V
DD
 
falling
0.72
0.99
1.32
V
Reset
VDD
V
POT+
V
Time
POT-