Electrical characteristics
STM32F042x4 STM32F042x6
50/117
DocID025832 Rev 5
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
HCLK
frequency:
–
0 wait state and Prefetch OFF from 0 to 24 MHz
–
1 wait state and Prefetch ON above 24 MHz
•
When the peripherals are enabled f
PCLK
= f
HCLK
The parameters given in
are derived from tests performed under
ambient temperature and supply voltage conditions summarized in
.
Table 26. Typical and maximum current consumption from V
DD
supply at V
DD
=
3.6 V
Symbol
Para
meter
Conditions
f
HCLK
All peripherals enabled
(1)
All peripherals disabled
Unit
Typ
Max @ T
A
(2)
Typ
Max @ T
A
25 °C
85 °C
105 °C
25 °C
85 °C
105 °C
I
DD
Su
ppl
y curren
t in Ru
n
mo
de,
co
de
exe
cu
tin
g fro
m
Fl
as
h me
mo
ry
HSI48
48 MHz 20.3
23.2
23.4
24.6
12.7
14.4
14.4
14.7
mA
HSE bypass,
PLL on
48 MHz
20.2
22.9
23.0
23.9
12.6
14.1
14.3
14.4
32 MHz
14.0
16.0
16.1
16.7
8.7
9.5
9.7
10.3
24 MHz
11.0
13.5
13.7
13.8
6.9
7.6
7.8
8.2
HSE bypass,
PLL off
8 MHz
3.9
5.2
5.3
5.6
2.6
3.1
3.2
3.3
1 MHz
0.9
1.3
1.5
1.8
0.7
1.0
1.1
1.3
HSI clock,
PLL on
48 MHz
20.5
23.1
23.3
23.6
12.8
14.6
14.6
15.0
32 MHz
14.3
15.6
15.9
17.0
8.6
9.5
9.7
10.0
24 MHz
11.2
13.6
13.8
14.8
6.9
7.4
7.5
7.7
HSI clock,
PLL off
8 MHz
4.1
5.2
5.3
5.6
2.6
3.1
3.1
3.3
