STM32L151XB datasheet(66/133 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32L151x6/8/B STM32L152x6/8/B

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DocID17659 Rev 12

On-chip peripheral current consumption

The current consumption of the on-chip peripherals is given in the following table. The MCU

is placed under the following conditions:

•

all I/O pins are in input mode with a static value at VDD or VSS (no load)

•

all peripherals are disabled unless otherwise mentioned

•

the given value is calculated by measuring the current consumption

–

with all peripherals clocked off

–

with only one peripheral clocked on

Table 23. Typical and maximum current consumptions in Standby mode

Symbol

Parameter

Conditions

Typ(1)

Max

(1)(2)

Unit

IDD

(Standby

with RTC)

Supply current in Standby

mode with RTC enabled

RTC clocked by LSI (no

independent watchdog)

TA = -40 °C to 25 °C

VDD = 1.8 V

0.9

µA

TA = -40 °C to 25 °C

1.1

1.8

TA = 55 °C

1.42

2.5

TA= 85 °C

1.87

TA = 105 °C

2.78

RTC clocked by LSE (no

independent watchdog)(3)

TA = -40 °C to 25 °C

VDD = 1.8 V

TA = -40 °C to 25 °C

1.33

2.9

TA = 55 °C

1.59

3.4

TA= 85 °C

2.01

4.3

TA = 105 °C

3.27

6.3

IDD

(Standby)

Supply current in Standby

mode with RTC disabled

Independent watchdog

and LSI enabled

TA = -40 °C to 25 °C

1.1

1.6

Independent watchdog

and LSI OFF

TA = -40 °C to 25 °C

0.3

0.55

TA = 55 °C

0.5

0.8

TA = 85 °C

1.7

TA = 105 °C

2.5

4(4)

IDD (WU

from

Standby)

RMS supply current during

wakeup time when exiting

from Standby mode

VDD = 3.0 V

TA = -40 °C to 25 °C

1. The typical values are given for VDD = 3.0 V and max values are given for VDD = 3.6 V, unless otherwise specified.

2. Guaranteed by characterization results, unless otherwise specified.

3. Based on characterization done with a 32.768 kHz crystal (MC306-G-06Q-32.768, manufacturer JFVNY) with two 6.8pF

loading capacitors.

4. Tested in production.

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