Datasheet

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STM8S105x4/6 Electrical characteristics
90
Low power mode wakeup times
Total current consumption and timing in forced reset state
Current consumption of on-chip peripherals
Subject to general operating conditions for V
DD
and T
A
.
Table 28. Wakeup times
Symbol Parameter Conditions Typ
Max
(1)
Unit
t
WU(WFI)
Wakeup time from wait
mode to run mode
(2)
0 to 16 MHz -
See note
(3)
µs
t
WU(WFI)
Wakeup time from run
mode
(2)
f
CPU
= f
MASTER
= 16 MHz 0.56 -
t
WU(AH)
Wakeup time active halt
mode to run mode
(2)
MVR voltage
regulator on
(4)
Flash in
operating
mode
(5)
HSI (after
wakeup)
1
(6)
2
(6)
t
WU(AH)
Wakeup time active halt
mode to run mode
(2)
MVR voltage
regulator off
(4)
Flash in
operating
mode
(5)
HSI (after
wakeup)
3
(6)
-
t
WU(AH)
Wakeup time active halt
mode to run mode
(2)
MVR voltage
regulator off
(4)
Flash in
operating
mode
(5)
HSI (after
wakeup)
48
(6)
-
t
WU(AH)
Wakeup time active halt
mode to run mode
(2)
MVR voltage
regulator off
(4)
Flash in
power-down
mode
(5)
HSI (after
wakeup)
50
(6)
-
t
WU(H)
Wakeup time from halt
mode to run mode
(2)
Flash in operating mode
(5)
52 -
t
WU(H)
Wakeup time from halt
mode to run mode
(2)
Flash in power-down mode
(5)
54 -
1. Data based on characterization results, not tested in production.
2. Measured from interrupt event to interrupt vector fetch
3. t
WU(WFI)
= 2 x 1/f
master
+ 67 x 1/f
CPU
4. Configured by the REGAH bit in the CLK_ICKR register.
5. Configured by the AHALT bit in the FLASH_CR1 register.
6. Plus 1 LSI clock depending on synchronization.
Table 29. Total current consumption and timing in forced reset state
Symbol Parameter Conditions Typ
Max
(1)
1. Data guaranteed by design, not tested in production.
Unit
I
DD(R)
Supply current in reset
state
(2)
2. Characterized with all I/Os tied to V
SS
.
V
DD
= 5 V 500 -
µA
V
DD
= 3.3 V 400 -
t
RESETBL
Reset pin release to
vector fetch
--150µs
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