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STM32F030F6P6 データシートの表示(PDF) - STMicroelectronics

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STM32F030F6P6 Datasheet PDF : 91 Pages
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STM32F030x4/x6/x8/xC
Electrical characteristics
Table 28. Typical current consumption in Run mode, code with data processing
running from Flash
Symbol
Parameter
Conditions
Typ
fHCLK Peripherals Peripherals Unit
enabled disabled
Supply current in Run
48 MHz
23.3
IDD mode from VDD
supply
Running from
HSE crystal
8 MHz
4.5
clock 8 MHz,
Supply current in Run code executing 48 MHz
158
IDDA mode from VDDA
supply
from Flash
8 MHz
2.43
11.5
mA
3.0
158
µA
2.43
Caution:
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 Table 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
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 notably the case of ADC input pins which should be
configured as analog inputs.
Any floating input pin can also settle to an intermediate voltage level or switch inadvertently,
as a result of external electromagnetic noise. To avoid current consumption related to
floating pins, they must either be configured in analog mode, or forced internally to a definite
digital value. This can be done either by using pull-up/down resistors or by configuring the
pins in output mode.
I/O dynamic current consumption
In addition to the internal peripheral current consumption measured previously, the I/Os
used by an application also contribute to the current consumption. When an I/O pin
switches, it uses the current from the I/O supply voltage to supply the I/O pin circuitry and to
charge/discharge the capacitive load (internal or external) connected to the pin:
ISW = VDDIOx × fSW × C
DocID024849 Rev 3
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