Datasheet

DS10668 Rev 6 67/126
STM32L031x4/6 Electrical characteristics
96
Table 36. Low-power mode wakeup timings
Symbol Parameter Conditions Typ Max Unit
t
WUSLEEP
Wakeup from Sleep mode f
HCLK
= 32 MHz 7 8
Number
of clock
cycles
t
WUSLEEP_
LP
Wakeup from Low-power sleep mode,
f
HCLK
= 262 kHz
f
HCLK
= 262 kHz
Flash memory enabled
78
f
HCLK
= 262 kHz
Flash memory switched OFF
910
t
WUSTOP
Wakeup from Stop mode, regulator in Run
mode
f
HCLK
= f
MSI
= 4.2 MHz 5.0 8
µs
f
HCLK
= f
HSI
= 16 MHz 4.9 7
f
HCLK
= f
HSI
/4 = 4 MHz 8.0 11
Wakeup from Stop mode, regulator in low-
power mode
f
HCLK
= f
MSI
= 4.2 MHz
Voltage range 1
5.0 8
f
HCLK
= f
MSI
= 4.2 MHz
Voltage range 2
5.0 8
f
HCLK
= f
MSI
= 4.2 MHz
Voltage range 3
5.0 8
f
HCLK
= f
MSI
= 2.1 MHz 7.3 13
f
HCLK
= f
MSI
= 1.05 MHz 13 23
f
HCLK
= f
MSI
= 524 kHz 28 38
f
HCLK
= f
MSI
= 262 kHz 51 65
f
HCLK
= f
MSI
= 131 kHz 100 120
f
HCLK
= MSI = 65 kHz 200 260
f
HCLK
= f
HSI
= 16 MHz 4.9 7
f
HCLK
= f
HSI
/4 = 4 MHz 8.0 11
Wakeup from Stop mode, regulator in low-
power mode, code running from RAM
f
HCLK
= f
HSI
= 16 MHz 4.9 7
f
HCLK
= f
HSI
/4 = 4 MHz 7.9 10
f
HCLK
= f
MSI
= 4.2 MHz 4.7 8
t
WUSTDBY
Wakeup from Standby mode
FWU bit = 1
f
HCLK
= MSI = 2.1 MHz 65 130
Wakeup from Standby mode
FWU bit = 0
f
HCLK
= MSI = 2.1 MHz 2.2 3 ms
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