Datasheet

Electrical parameters STM8L151x2, STM8L151x3
64/112 Doc ID 018780 Rev 4
Current consumption of on-chip peripherals
Table 23. Peripheral current consumption
Symbol Parameter
Typ.
V
DD
= 3.0 V
Unit
I
DD(TIM2)
TIM2 supply current
(1)
8
µA/MHz
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)
38 µA/MHz
I
DD(ADC1)
ADC1 supply current
(4)
1500 µA
I
DD(COMP1)
Comparator 1 supply current
(5)
0.160
µA
I
DD(COMP2)
Comparator 2 supply current
(5)
Slow mode 2
Fast mode 5
I
DD(PVD/BOR)
Power voltage detector and brownout Reset unit supply current
(6)
2.6
I
DD(BOR)
Brownout Reset unit supply current
(6)
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: TIM2, TIM3, TIM4, USART1, SPI1, I2C1, DMA1, WWDG.
4. Data based on a differential I
DD
measurement between ADC1 in reset configuration and continuous ADC1 conversion.
5. 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.
6. Including supply current of internal reference voltage.