DocID026079 Rev 3
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STM32F038x6
Electrical characteristics
79
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 44: 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 25. Typical current consumption, code executing from Flash memory,
running from HSE 8 MHz crystal
Symbol
Parameter
f
HCLK
Typical consumption in
Run mode
Typical consumption in
Sleep mode
Unit
Peripherals
enabled
Peripherals
disabled
Peripherals
enabled
Peripherals
disabled
I
DD
Current
consumption
from V
DD
supply
48 MHz
18.5
11.6
10.8
2.6
mA
36 MHz
14.1
8.9
8.2
2.0
32 MHz
12.7
8.1
7.3
1.8
24 MHz
9.7
6.2
5.6
1.4
16 MHz
6.7
4.3
3.9
1.1
8 MHz
3.4
2.3
1.9
0.6
4 MHz
2.1
1.4
1.3
0.5
2 MHz
1.3
0.9
0.9
0.5
1 MHz
0.9
0.7
0.7
0.4
500 kHz
0.7
0.6
0.6
0.4
I
DDA
Current
consumption
from V
DDA
supply
48 MHz
136
μ
A
36 MHz
105
32 MHz
96
24 MHz
76
16 MHz
56
8 MHz
1
4 MHz
1
2 MHz
1
1 MHz
1
500 kHz
1