Supply Current Characteristics; Table 26 Table - STMicroelectronics STM32F042G4 Manual

Electrical characteristics
6.3.5

Supply current characteristics

The current consumption is a function of several parameters and factors such as the
operating voltage, ambient temperature, I/O pin loading, device software configuration,
operating frequencies, I/O pin switching rate, program location in memory and executed
binary code.
The current consumption is measured as described in
measurement
All Run-mode current consumption measurements given in this section are performed with a
reduced code that gives a consumption equivalent to CoreMark code.
Typical and maximum current consumption
The MCU is placed under the following conditions:

All I/O pins are in analog input mode

All peripherals are disabled except when explicitly mentioned

The Flash memory access time is adjusted to the f
–
–

When the peripherals are enabled f
The parameters given in
ambient temperature and supply voltage conditions summarized in
operating
Table 26. Typical and maximum current consumption from V
Conditions
HSI48
HSE bypass,
PLL on
HSE bypass,
I PLL off
DD
HSI clock,
PLL on
HSI clock,
PLL off
52/117
scheme.
0 wait state and Prefetch OFF from 0 to 24 MHz
1 wait state and Prefetch ON above 24 MHz
Table 26
conditions.
All peripherals enabled
f
HCLK
Typ
48 MHz 20.3
48 MHz 20.2
32 MHz 14.0
24 MHz 11.0
8 MHz 3.9
1 MHz 0.9
48 MHz 20.5
32 MHz 14.3
24 MHz 11.2
8 MHz 4.1
DocID025832 Rev 2
= f
PCLK HCLK
to Table 30 are derived from tests performed under
(1)
(2)
Max @ T
A
25 °C 85 °C 105 °C
23.2 23.4 24.6
22.9 23.0 23.9
16.0 16.1 16.7
13.5 13.7 13.8
5.2 5.3 5.6
1.3 1.5 1.8
23.1 23.3 23.6
15.6 15.9 17.0
13.6 13.8 14.8
5.2 5.3 5.6
Figure 14: Current consumption
frequency:
HCLK
Table 21: General
supply at V
DD DD
All peripherals disabled
Max @ T
Typ
25 °C 85 °C 105 °C
12.7 14.4 14.4
12.6 14.1 14.3
8.7 9.5 9.7
6.9 7.6 7.8
2.6 3.1 3.2
0.7 1.0 1.1
12.8 14.6 14.6
8.6 9.5 9.7
6.9 7.4 7.5
2.6 3.1 3.1
STM32F042xx
= 3.6 V
(2)
A Unit
14.7
14.4
10.3
8.2
3.3
mA
1.3
15.0
10.0
7.7
3.3