Datasheet

DocID15962 Rev 13 77/131
STM8L151xx, STM8L152xx Electrical parameters
112
In the following table, data is based on characterization results, unless otherwise specified.
Table 25. Typical current consumption in Active-halt mode, RTC clocked by LSE external crystal
Symbol Parameter Condition
(1)
Typ Unit
I
DD(AH)
(2)
Supply current in Active-halt
mode
V
DD
= 1.8 V
LSE 1.15
µA
LSE/32
(3)
1.05
V
DD
= 3 V
LSE 1.30
LSE/32
(3)
1.20
V
DD
= 3.6 V
LSE 1.45
LSE/32
(3)
1.35
1. No floating I/O, unless otherwise specified.
2. Based on measurements on bench with 32.768 kHz external crystal oscillator.
3. RTC clock is LSE divided by 32.
Table 26. Total current consumption and timing in Halt mode at V
DD
= 1.65 to 3.6 V
Symbol Parameter Condition
(1)
Typ Max Unit
I
DD(Halt)
Supply current in Halt mode
(Ultra-low-power ULP bit =1 in
the
PWR_CSR2 register)
T
A
= -40 °C to 25 °C 350
1400
(2)
nA
T
A
= 55 °C 580 2000
T
A
= 85 °C 1160
2800
(2)
T
A
= 105 °C 2560
6700
(2)
T
A
= 125 °C 4.4
13
(2)
µA
I
DD(WUHalt)
Supply current during wakeup
time from Halt mode (using
HSI)
2.4 - mA
t
WU_HSI(Halt)
(3)(4)
Wakeup time from Halt to Run
mode (using HSI)
4.7 7 µs
t
WU_LSI(Halt)
(3)(4)
Wakeup time from Halt mode
to Run mode (using LSI)
150 - µs
1. T
A
= -40 to 125 °C, no floating I/O, unless otherwise specified.
2. Tested in production.
3. ULP=0 or ULP=1 and FWU=1 in the PWR_CSR2 register.
4. Wakeup time until start of interrupt vector fetch.
The first word of interrupt routine is fetched 4 CPU cycles after t
WU
.