STM8L151C4 datasheet(68/101 Pages) STMICROELECTRONICS

68 / 101 page

Electrical parameters

STM8L151xx, STM8L152xx

68/101

Doc ID 15962 Rev 2

Current consumption of on-chip peripherals

Table 23.

Peripheral current consumption

Symbol

Parameter

Typ.

VDD = 3.0 V

Unit

IDD(TIM1)

TIM1 supply current(1)

µA/MHz

IDD(TIM2)

TIM2 supply current (1)

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

IDD(WWDG)

WWDG supply current

IDD(ALL)

Peripherals ON(3)

µA/MHz

IDD(RTC)

RTC supply current when clocked by LSI

TBD

µA

RTC supply current when clocked at 1 MHz

TBD

IDD(LCD)

LCD supply current when clocked at 32 kHz /2

TBD

LCD supply current when clocked at 1 MHz /2

TBD

IDD(ADC1)

ADC1 supply current(4)

1500

µA

IDD(DAC)

DAC supply current(5)

370

IDD(COMP1)

Comparator 1 supply current(6)

0.160

IDD(COMP2)

Comparator 2 supply current(6)

Slow mode

Fast mode

IDD(PVD/BOR)

Power voltage detector and brownout Reset unit supply current

(7)

2.8

IDD(IDWDG)

Independent watchdog supply current

TBD

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.

Data based on a differential IDD measurement between DAC in reset configuration and continuous DAC conversion of VDD

/2. DAC output is in high-impedance.

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.

Including supply current of internal reference voltage.

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