STM32WBA62CGF6 datasheet(124/185 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32WBA6xxx

124/185

DS14736 Rev 1

I/O system current consumption

The current consumption of the I/O system has two components: static and dynamic.

I/O static current consumption

All the I/Os used as inputs with pull-up or pull-down generate current consumption when the

pin is externally held to the opposite level. The value of this current consumption can be

simply computed by using the pull-up/pull-down resistors values given in Section 5.3.17.

For the output pins, any internal or external pull-up or pull-down and external load must also

be considered to estimate the current consumption.

An additional current consumption is due to I/Os configured as inputs when an intermediate

voltage level is applied externally. This is caused by the input Schmitt trigger circuits used to

discriminate the input value. Unless this specific configuration is required by the application,

this supply current consumption can be avoided by configuring these I/Os in analog mode.

This is the case of ADC input pins, which must be configured as analog inputs.

IDD(Standby

with RTC)

Supply current in Standby

mode, no IWDG, RTC

enabled

Clocked by LSI1,

ULPMEN = 0

1.8 V

1.45

1.71

2.75

μA

2.4 V

1.87

2.15

3.22

3.0 V

2.33

2.72

4.04

3.3 V

2.70

3.24

4.83

3.6 V

3.38

4.26

6.20

Clocked by

LSI1/128,

ULPMEN = 0

1.8 V

1.33

1.59

2.62

2.4 V

1.69

1.96

3.04

3.0 V

2.09

2.48

3.80

3.3 V

2.42

2.97

4.56

3.6 V

3.08

3.95

5.89

Clocked by LSE

bypass

32.768 kHz,

ULPMEN = 0

1.8 V

1.69

2.05

3.31

2.4 V

2.09

2.47

3.81

3.0 V

2.54

3.04

4.69

3.3 V

2.91

3.59

5.57

3.6 V

3.60

4.66

7.13

Clocked by LSE

crystal

32.768 kHz in

medium low-

drive,

ULPMEN = 0

1.8 V

1.74

2.06

3.40

2.4 V

2.14

2.48

3.47

3.0 V

2.60

3.06

4.29

3.3 V

2.99

3.61

5.10

3.6 V

3.73

4.66

6.56

1. Evaluated by characterization, not tested in production, unless otherwise specified.

Table 54. Current consumption in Standby mode(1) (continued)

Symbol

Parameter

Conditions

Typ

Unit

VDD

25 °C

55 °C

85 °C

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