EFM32WG990 Datasheet, PDF (21/80 Pages) List of Unclassifed Manufacturers – The EFM32 MCUs are the world’s most energy friendly microcontrollers.

Preliminary
3.6 Power Management
Table 3.6. Power Management
...the world's most energy friendly microcontrollers
Symbol
V_BODextthr-
V_BODintthr-
V_BODextthr+
V_PORthr+
t_RESET
C_DECOUPLE
C_{USB_VREGO}
C_{USB_VREGI}
Parameter
Condition
Min
Typ
Max
Unit
BOD threshold on falling
external supply voltage
1.82
1.85 V
BOD threshold on falling
internally regulated supply
voltage
1.62
1.68 V
BOD threshold on rising ex-
ternal supply voltage
1.85
V
Power-on Reset (POR)
threshold on rising external
supply voltage
1.98 V
Delay from reset is re-
Applies to Power-on Reset,
leased until program execu- Brown-out Reset and pin re-
tion starts
set.
163
µs
Voltage regulator decou-
pling capacitor.
X5R capacitor recommended.
Apply between DECOUPLE
pin and GROUND
1
µF
USB voltage regulator out
decoupling capacitor.
X5R capacitor recommended.
Apply between USB_VREGO
pin and GROUND
1
µF
USB voltage regulator in
decoupling capacitor.
X5R capacitor recommended.
Apply between USB_VREGI
pin and GROUND
4.7
µF
2013-05-06 - EFM32WG990FXX - d0203_Rev1.10
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