STM8L052C6 datasheet(67/103 Pages) STMICROELECTRONICS

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STM8L052C6

Electrical parameters

Current consumption of on-chip peripherals

Table 24. Peripheral current consumption

Symbol

Parameter

Typ.

VDD = 3.0 V

Unit

IDD(TIM1)

TIM1 supply current(1)

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(PVD/BOR)

Power voltage detector and brownout Reset unit supply

current (5)

2.6

IDD(BOR)

Brownout Reset unit supply current (5)

2.4

IDD(IDWDG)

Independent watchdog supply current

including LSI supply

current

0.45

excluding LSI

supply current

0.05

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.

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.

Peripherals listed above the IDD(ALL) parameter ON: TIM1, TIM2, TIM3, TIM4, USART1, SPI1, I2C1, DMA1, WWDG.

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

Including supply current of internal reference voltage.

Table 25. Current consumption under external reset

Symbol

Parameter

Conditions

Typ

Unit

IDD(RST)

Supply current under

external reset (1)

All pins are externally

tied to VDD

VDD = 1.8 V

µA

VDD = 3 V

VDD = 3.6 V

All pins except PA0, PB0 and PB4 are floating under reset. PA0, PB0 and PB4 are configured with pull-up under reset.

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