STM32WB50CG datasheet(71/119 Pages) STMICROELECTRONICS

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DS13047 Rev 5

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STM32WB50CG STM32WB30CE

Electrical characteristics

110

Table 40. Current consumption in Standby mode

Symbol

Parameter

Conditions

TYP

MAX(1)

Unit

-VDD 0 °C 25 °C 40 °C 55 °C 85 °C 0 °C 25 °C 85 °C

IDD

(Standby)

Supply

current in

Standbymode

(backup

registers and

SRAM2a

retained),



RTC disabled

BLE disabled



No independent

watchdog

2.4 V 0.270 0.350 0.540 0.955 3.50

µA

3.0 V 0.270 0.370 0.575 1.00

3.85 0.380 0.945 8.505

3.6 V 0.300 0.410 0.645 1.15

4.20 0.400 1.040 8.980

BLE disabled



With

independent

watchdog

2.4 V 0.280 0.595 0.790 1.20

4.00

3.0 V 0.290 0.670 0.855 1.35

4.15 0.730 1.253 8.774

3.6 V 0.295 0.770 0.990 1.50

4.60 0.851 1.356 9.360

IDD

(Standby with

RTC)

Supply

current in

Standbymode

(backup

registers and

SRAM2a

retained),



RTC enabled



BLE disabled

RTC clocked by

LSI, no

independent

watchdog

2.4 V 0.630 0.705 0.910 1.30

3.80

3.0 V 0.725 0.825 1.050 1.50

3.95 0.930 1.463 8.977

3.6 V 0.860 0.970 1.200 1.70

4.25 1.050 1.628 9.634

RTC clocked by

LSI, with

independent

watchdog

2.4 V 0.635 0.790 0.975 1.40

4.10

3.0 V 0.725 0.915 1.100 1.55

4.50 1.028 1.573 9.072

3.6 V 0.870 1.050 1.300 1.80

4.90 1.144 1.723 9.730

RTC clocked by

LSE quartz (2) in

low drive mode

2.4 V 0.665 0.755 0.960 1.35

4.05

3.0 V 0.775 0.880 1.100 1.55

4.40 0.600 1.100 8.719

3.6 V 0.935 1.050 1.300 1.80

5.00 0.750 1.171 9.460

IDD

(SRAM2a)(3)

Supply

current to be

subtracted in

Standbymode

when

SRAM2a is

not retained

2.4 V 0.165 0.245 0.375 0.650 2.15

µA

3.0 V 0.155 0.250 0.385 0.630 2.25

3.6 V 0.155 0.235 0.375 0.670 2.20

IDD

(wakeup from

Standby)

Supply

current during

wakeup from

Standbymode

Wakeup clock is

HSI16. See (4).

3.0 V

1.73

1. Guaranteed by characterization results, unless otherwise specified.

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

loading capacitors.

3. The supply current in Standby with SRAM2a mode is: IDD(Standby) + IDD(SRAM2a). The supply current in Standby with

RTC with SRAM2a mode is: IDD(Standby + RTC) + IDD(SRAM2a).

4. Wakeup with code execution from Flash memory. Average value given for a typical wakeup time as specified in Table 45.

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