EFM32WG840F128 Energy Micro, EFM32WG840F128 Datasheet - Page 13

• Manufacturer Part Number: EFM32WG840F128
• Description: ARM Microcontrollers - MCU 128kb flash 32kb RAM
• Manufacturer: Energy Micro

Specifications of EFM32WG840F128

• Rohs: yes
• Core: ARM Cortex M4F
• Processor Series: EFM32WG840
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 48 MHz
• Program Memory Size: 128 KB
• Data Ram Size: 32 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 1.85 V to 3.8 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: QFN-64
• Mounting Style: SMD/SMT

3.5 Transition between Energy Modes
3.6 Power Management
2012-09-11 - EFM32WG840FXX - d0195_Rev1.00
Table 3.5. Energy Modes Transitions
1
Table 3.6. Power Management
Core wakeup time only.
Symbol
t
t
t
t
Symbol
V
V
V
V
t
C
EM10
EM20
EM30
EM40
RESET
BODextthr-
BODintthr-
BODextthr+
PORthr+
DECOUPLE
Parameter
Transition time from EM1 to EM0
Transition time from EM2 to EM0
Transition time from EM3 to EM0
Transition time from EM4 to EM0
Parameter
BOD threshold on falling
external supply voltage
BOD threshold on falling
internally regulated supply
voltage
BOD threshold on rising ex-
ternal supply voltage
Power-on Reset (POR)
threshold on rising external
supply voltage
Delay from reset is re-
leased until program execu-
tion starts
Voltage regulator decou-
pling capacitor.
Preliminary
Condition
Applies to Power-on Reset,
Brown-out Reset and pin re-
set.
X5R capacitor recommended.
Apply between DECOUPLE
pin and GROUND
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13
Min
1.82
1.62
Min
Typ
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1.85
Typ
163
163
1
0
2
2
1
Max
Max
1.85 V
1.68 V
1.98 V
Unit
HF
core
CLK
cycles
µs
µs
µs
Unit
V
µs
µF