STM8L101X2 datasheet(45/88 Pages) STMICROELECTRONICS

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STM8L101x1 STM8L101x2 STM8L101x3

Electrical parameters

Current consumption of on-chip peripherals

Measurement made for fMASTER = from 2 MHz to 16 MHz

9.3.4

Clock and timing characteristics

Internal clock sources

Subject to general operating conditions for VDD and TA.

High speed internal RC oscillator (HSI)

Table 21. Peripheral current consumption

Symbol

Parameter

Typ. VDD = 3.0 V

Unit

IDD(TIM2)

TIM2 supply current (1)

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 pin toggling. Not tested in

production.

µA/MHz

IDD(TIM3)

TIM3 supply current (1)

IDD(TIM4)

TIM4 timer supply current (1)

IDD(USART)

USART supply current (2)

2. Data based on a differential IDD measurement between the on-chip peripheral when kept under reset 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 pin toggling. Not tested in production.

IDD(SPI)

SPI supply current (2)

IDD(I²C1)

I2C supply current (2)

IDD(COMP)

Comparator supply current (2)

µA

Table 22. HSI oscillator characteristics (1)

1. VDD = 3.0 V, TA = -40 to 125 °C unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fHSI

Frequency

VDD = 3.0 V

MHz

ACCHSI

Accuracy of HSI

oscillator

(factory calibrated)

VDD = 3.0 V, TA = 25 °C

-1

VDD = 3.0 V, -10 °C ≤TA ≤ 85 °C

-2.5(2)

-2(2)

VDD = 3.0 V, -10 °C ≤TA ≤ 125 °C

-4.5(2)

-2(2)

VDD = 3.0 V, 0 °C ≤TA ≤ 55 °C

-1.5(2)

2. Guaranteed by characterization results.

-1.5(2)

VDD = 3.0 V, -10 °C ≤TA ≤ 70 °C

-2(2)

1.65 V

≤ VDD ≤ 3.6 V,

-40 °C

≤ TA ≤125 °C

-4.5(2)

-3(2)

IDD(HSI)

HSI oscillator power

consumption

100(2)

µA

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