EZR32LG330 Datasheet, PDF (16/87 Pages) Silicon Laboratories – Building and home automation

4.6 Transitions between Energy Modes
The transition times are measured from the trigger to the first clock edge in the CPU.
Table 4.6. Energy Modes Transitions
EZR32LG330 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 EZR32LG requires the AVDD_x, VDD_DREG 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 Considerations.
Table 4.7. Power Management
Parameter
Symbol
Test Condition
Min
BOD threshold on falling external V_BODextthr-
supply voltage
1.74
BOD threshold on falling internally V_BODintthr-
regulated supply voltage
1.57
BOD threshold on rising external V_BODextthr+
─
supply voltage
Power-on Reset (POR) threshold V_PORthr+
─
on rising external supply voltage
Delay from reset is released until
t_RESET
Applies to Power-on Re-
─
program execution starts
set, Brown-out Reset and
pin reset.
Voltage regulator decoupling ca- C_DECOUPLE X5R capacitor recommen-
─
pacitor.
ded. Apply between DE-
COUPLE pin and
GROUND
Typ
─
─
1.85
─
163
1
Max
1.96
1.7
1.98
1.98
─
─
Unit
V
V
V
V
µs
µF
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