EFM32G840F128 Datasheet, PDF (19/71 Pages) Silicon Laboratories – ARM Cortex-M3 CPU platform

Table 3.6. Power Management
...the world's most energy friendly microcontrollers
Symbol
V_BODextthr-
V_BODintthr-
V_BODextthr+
V_PORthr+
t_RESETdly
t_RESET
C_DECOUPLE
Parameter
Condition
Min
Typ
BOD threshold on
1.82
falling external sup-
ply voltage
BOD threshold on
1.62
falling internally reg-
ulated supply volt-
age
BOD threshold on
rising external sup-
ply voltage
Power-on Reset
(POR) threshold on
rising external sup-
ply voltage
Delay from reset
is released until
program execution
starts
Applies to Power-on Reset,
Brown-out Reset and pin reset.
negative pulse
50
length to ensure
complete reset of
device
Voltage regulator
decoupling capaci-
tor.
X5R capacitor recommended.
Apply between DECOUPLE pin
and GROUND
Max
Unit
1.85 V
1.68 V
1.85
V
1.98 V
163
µs
ns
1
µF
3.7 Flash
Table 3.7. Flash
Symbol
Parameter
Condition
EC_FLASH
Flash erase cycles
before failure
RET_FLASH
t_{W_PROG}
T_AMB<150°C
Flash data retention T_AMB<85°C
T_AMB<70°C
Word (32-bit) pro-
gramming time
t_{P_ERASE}
Page erase time
t_{D_ERASE}
Device erase time
I_ERASE
Erase current
I_WRITE
Write current
V_FLASH
Supply voltage dur-
ing flash erase and
write
1_{Measured at 25°C}
Min
Typ
20000
Max
Unit
cycles
10000
10
20
20
h
years
years
µs
20
20.4
20.8 ms
40
40.8
41.6 ms
7¹ mA
7¹ mA
1.8
3.8 V
2013-11-22 - EFM32G840FXX - d0008_Rev1.71
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