STM8L151C3 datasheet(71/122 Pages) STMICROELECTRONICS

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STM8L151x2, STM8L151x3

Electrical parameters

102

Current consumption of on-chip peripherals

Table 26. Peripheral current consumption

Symbol

Parameter

Typ.

VDD = 3.0 V

Unit

IDD(TIM2)

TIM2 supply current (1)

µA/MHz

IDD(TIM3)

TIM3 supply current (1)

IDD(TIM4)

TIM4 timer supply current (1)

IDD(USART1)

USART1 supply current (2)

IDD(SPI1)

SPI1 supply current (2)

IDD(I2C1)

I2C1 supply current (2)

IDD(DMA1)

DMA1 supply current(2)

IDD(WWDG)

WWDG supply current(2)

IDD(ALL)

Peripherals ON(3)

µA/MHz

IDD(ADC1)

ADC1 supply current(4)

1500

µA

IDD(COMP1)

Comparator 1 supply current(5)

0.160

µA

IDD(COMP2)

Comparator 2 supply current(5)

Slow mode

Fast mode

IDD(PVD/BOR)

Power voltage detector and brownout Reset unit supply

current (6)

2.6

IDD(BOR)

Brownout Reset unit supply current (6)

2.4

IDD(IDWDG)

Independent watchdog supply current

including LSI supply

current

0.45

excluding LSI

supply current

0.05

1. Data based on a differential IDD 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 IDD 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 IDD(ALL) parameter ON: TIM2, TIM3, TIM4, USART1, SPI1, I2C1, DMA1, WWDG.

4. Data based on a differential IDD measurement between ADC1 in reset configuration and continuous ADC1 conversion.

5. Data based on a differential IDD 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.

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