Data Sheet

952
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181G–SAM-D21_Datasheet–09/2015
36.9 Analog Characteristics
36.9.1 Voltage Regulator Characteristics
Table 36-16. 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 36-17. Decoupling requirements
36.9.2 Power-On Reset (POR) Characteristics
Table 36-18. POR Characteristics
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
0.8 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