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EFM32HG322 Datasheet, PDF (18/70 Pages) Silicon Laboratories – Output state retention and wake-up from Shutoff Mode
Preliminary
...the world's most energy friendly microcontrollers
Table 3.5. Power Management
Symbol
VBODextthr-
VBODextthr+
tRESET
CDECOUPLE
CUSB_VREGO
CUSB_VREGI
Parameter
Condition
Min
Typ
BOD threshold on
1.74
falling external sup-
ply voltage
BOD 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.
Voltage regulator
decoupling capaci-
tor.
X5R capacitor recommended.
Apply between DECOUPLE pin
and GROUND
USB voltage regu- X5R capacitor recommended.
lator out decoupling Apply between USB_VREGO
capacitor.
pin and GROUND
USB voltage regula- X5R capacitor recommended.
tor in decoupling ca- Apply between USB_VREGI
pacitor.
pin and GROUND
Max
Unit
1.96 V
1.89
V
163
µs
1
µF
1
µF
4.7
µF
3.7 Flash
Table 3.6. Flash
Symbol
Parameter
Condition
ECFLASH
Flash erase cycles
before failure
RETFLASH
tW_PROG
TAMB<150°C
Flash data retention TAMB<85°C
TAMB<70°C
Word (32-bit) pro-
gramming time
tP_ERASE
Page erase time
tD_ERASE
Device erase time
IERASE
Erase current
IWRITE
Write current
VFLASH
Supply voltage dur-
ing flash erase and
write
1Measured at 25°C
3.8 General Purpose Input Output
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
1.98
3.8 V
Table 3.7. GPIO
Symbol
VIOIL
VIOIH
Parameter
Input low voltage
Input high voltage
Condition
Min
Typ
0.70VDD
Max
Unit
0.30VDD V
V
2015-05-06 - EFM32HG322FXX - _Rev0.91
18
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