EZR32HG220 Datasheet, PDF (21/86 Pages) Silicon Laboratories – Consumer electronics

4.6 Transitions between Energy Modes
The transition times are measured from the trigger to the first clock edge in the CPU.
Table 4.5. Energy Modes Transitions
EZR32HG220 Data Sheet
Electrical Specifications
Parameter
Symbol
Min
Typ
Max
Unit
Transition time from EM1 to EM0
t_EM10
─
0
─
HFCORECLK cycles
Transition time from EM2 to EM0
t_EM20
─
2
─
µs
Transition time from EM3 to EM0
t_EM30
─
2
─
µs
Transition time from EM4 to EM0
t_EM40
─
163
─
µs
4.7 Power Management
The EZR32HG requires the AVDD_x, VDD_DREG, RFVDD_x and IOVDD_x pins to be connected together (with optional filter) at the
PCB level. For practical schematic recommendations, please see the application note, AN0002: EFM32 Hardware Design Considera-
tions.
Table 4.6. Power Management
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
BOD threshold on falling external
supply voltage
V_BODextthr- EM0
V_BODextthr EM2
+
1.74
─
1.96
V
1.71
1.86
1.98
V
BOD threshold on rising external
supply voltage
t_RESET
─
1.85
─
V
Delay from reset is released until C_DECOU- Applies to Power-on Reset, Brown-
─
163
─
µs
program execution starts
PLE
out Reset and pin reset.
Voltage regulator decoupling ca-
pacitor.
X5R capacitor recommended. Ap-
─
1
─
µF
ply between DECOUPLE pin and
GROUND
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