Datasheet

Electrical characteristics STM32F031x4 STM32F031x6
48/106 DocID025743 Rev 6
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 generate current consumption when the pin is
externally held low. The value of this current consumption can be simply computed by using
the pull-up/pull-down resistors values given in
Tabl e 46: I/O static characteristics.
For the output pins, any external pull-down or external load must also be considered to
estimate the current consumption.
Additional I/O current consumption is due to I/Os configured as inputs if an intermediate
voltage level is externally applied. This current consumption is caused by the input Schmitt
Table 27. Typical current consumption, code executing from Flash memory,
running from HSE 8 MHz crystal
Symbol
Parameter
f
HCLK
Typical run mode Typical Sleep mode unit
Peripheral
s enabled
Peripheral
s disabled
Peripheral
s enabled
Peripheral
s disabled
-
I
DD
Current
from V
DD
supply
48MHz 20.2 12.3 11.1 2.9
mA
36 MHz 15.3 9.5 8.4 2.4
32 MHz 13.6 8.6 7.5 2.2
24 MHz 10.5 6.7 5.9 1.8
16 MHz 7.2 4.7 4.1 1.4
8 MHz 3.8 2.7 2.3 0.9
4 MHz 2.4 1.8 1.7 0.9
2 MHz 1.6 1.3 1.2 0.8
1 MHz 1.2 1.1 1.0 0.8
500 kHz 1.0 1.0 0.9 0.8
I
DDA
Current
from V
DDA
supply
48MHz 155
uA
36 MHz 117
32 MHz 105
24 MHz 83
16 MHz 60
8 MHz 2.2
4 MHz 2.2
2 MHz 2.2
1 MHz 2.2
500 kHz 2.2
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