Datasheet
Electrical parameters STM8L151xx, STM8L152xx
78/131 DocID15962 Rev 13
Current consumption of on-chip peripherals
Table 27. Peripheral current consumption
Symbol Parameter
Typ.
V
DD
= 3.0 V
Unit
I
DD(TIM1)
TIM1 supply current
(1)
13
µA/MHz
I
DD(TIM2)
TIM2 supply current
(1)
8
I
DD(TIM3)
TIM3 supply current
(1)
8
I
DD(TIM4)
TIM4 timer supply current
(1)
3
I
DD(USART1)
USART1 supply current
(2)
6
I
DD(SPI1)
SPI1 supply current
(2)
3
I
DD(I2C1)
I
2
C1 supply current
(2)
5
I
DD(DMA1)
DMA1 supply current
(2)
3
I
DD(WWDG)
WWDG supply current
(2)
2
I
DD(ALL)
Peripherals ON
(3)
44 µA/MHz
I
DD(ADC1)
ADC1 supply current
(4)
1500 µA
I
DD(DAC)
DAC supply current
(5)
370 µA
I
DD(COMP1)
Comparator 1 supply current
(6)
0.160
µA
I
DD(COMP2)
Comparator 2 supply current
(6)
Slow mode 2
Fast mode 5
I
DD(PVD/BOR)
Power voltage detector and brownout Reset unit supply
current
(7)
2.6
I
DD(BOR)
Brownout Reset unit supply current
(7)
2.4
I
DD(IDWDG)
Independent watchdog supply current
including LSI supply
current
0.45
excluding LSI
supply current
0.05
1. Data based on a differential I
DD
measurement between all peripherals OFF and a timer counter running at 16 MHz. The
CPU is in Wait mode in both cases. No IC/OC programmed, no I/O pins toggling. Not tested in production.
2. Data based on a differential I
DD
measurement between the on-chip peripheral in reset configuration and not clocked and
the on-chip peripheral when clocked and not kept under reset. The CPU is in Wait mode in both cases. No I/O pins toggling.
Not tested in production.
3. Peripherals listed above the I
DD(ALL)
parameter ON: TIM1, TIM2, TIM3, TIM4, USART1, SPI1, I2C1, DMA1, WWDG.
4. Data based on a differential I
DD
measurement between ADC in reset configuration and continuous ADC conversion.
5. Data based on a differential I
DD
measurement between DAC in reset configuration and continuous DAC conversion of
V
DD
/2. Floating DAC output.
6. Data based on a differential I
DD
measurement between COMP1 or COMP2 in reset configuration and COMP1 or COMP2
enabled with static inputs. Supply current of internal reference voltage excluded.
7. Including supply current of internal reference voltage.