STM32L151XE datasheet(72/134 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32L151xE STM32L152xE

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DocID025433 Rev 8

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

Max(1)

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

0.865

µA

TA = -40 °C to 25 °C

1.11

1.9

TA = 55 °C

1.72

2.2

TA= 85 °C

2.12

TA = 105 °C

2.54

8.3(2)

RTC clocked by LSE

external quartz (no

independent

watchdog)(3)

TA = -40 °C to 25 °C

VDD = 1.8 V

0.97

TA = -40 °C to 25 °C

1.28

TA = 55 °C

2.01

TA= 85 °C

2.5

TA = 105 °C

2.98

IDD

(Standby)

Supply current in

Standby mode (RTC

disabled)

Independent watchdog

and LSI enabled

TA = -40 °C to 25 °C

1.7

Independent watchdog

and LSI OFF

TA = -40 °C to 25 °C

0.29

TA = 55 °C

0.96

1.3

TA = 85 °C

1.38

TA = 105 °C

1.98

7(2)

IDD

(WU from

Standby)

Supply current during

wakeup time from

Standby mode

-TA = -40 °C to 25 °C

1. Guaranteed by characterization results, unless otherwise specified.

2. Guaranteed by test in production.

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

loading capacitors.

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