Datasheet
STM32F051x Electrical characteristics
Doc ID 022265 Rev 3 47/105
Table 25. Typical and maximum current consumption from V
DD
supply at V
DD
=
3.6 V
Symbol Parameter Conditions f
HCLK
All peripherals enabled All peripherals disabled
Unit
Typ
Max @ T
A
(1)
Typ
Max @ T
A
(1)
25 °C 85 °C 105 °C 25 °C 85 °C 105 °C
I
DD
Supply
current in
Run mode,
code
executing
from Flash
HSE
bypass,
PLL on
48 MHz 22 22.8 22.8 23.8 11.8 12.7 12.7 13.3
mA
32 MHz 15 15.5 15.5 16.0 7.6 8.7 8.7 9.0
24 MHz 12.2 13.2 13.2 13.6 7.2 7.9 7.9 8.1
HSE
bypass,
PLL off
8 MHz 4.4 5.2 5.2 5.4 2.7 2.9 2.9 3.0
1 MHz 1 1.3 1.3 1.4 0.7 0.9 0.9 0.9
HSI clock,
PLL on
48 MHz 22 22.8 22.8 23.8 11.8 12.7 12.7 13.3
32 MHz 15 15.5 15.5 16.0 7.6 8.7 8.7 9.0
24 MHz 12.2 13.2 13.2 13.6 7.2 7.9 7.9 8.1
HSI clock,
PLL off
8 MHz 4.4 5.2 5.2 5.4 2.7 2.9 2.9 3.0
Supply
current in
Run mode,
code
executing
from RAM
HSE
bypass,
PLL on
48 MHz 22.2 23.2
(2)
23.2 24.4
(2)
12.0 12.7
(2)
12.7 13.3
(2)
32 MHz 15.4 16.3 16.3 16.8 7.8 8.7 8.7 9.0
24 MHz 11.2 12.2 12.2 12.8 6.2 7.9 7.9 8.1
HSE
bypass,
PLL off
8 MHz 4.0 4.5 4.5 4.7 1.9 2.9 2.9 3.0
1 MHz 0.6 0.8 0.8 0.9 0.3 0.6 0.6 0.7
HSI clock,
PLL on
48 MHz 22.2 23.2 23.2 24.4 12.0 12.7 12.7 13.3
32 MHz 15.4 16.3 16.3 16.8 7.8 8.7 8.7 9.0
24 MHz 11.2 12.2 12.2 12.8 6.2 7.9 7.9 8.1
HSI clock,
PLL off
8 MHz 4.0 4.5 4.5 4.7 1.9 2.9 2.9 3.0
Supply
current in
Sleep
mode,
code
executing
from Flash
or RAM
HSE
bypass,
PLL on
48 MHz 14 15.3
(2)
15.3 16.0
(2)
2.8 3.0
(2)
3.0 3.2
(2)
32 MHz 9.5 10.2 10.2 10.7 2.0 2.1 2.1 2.3
24 MHz 7.3 7.8 7.8 8.3 1.5 1.7 1.7 1.9
HSE
bypass,
PLL off
8 MHz 2.6 2.9 2.9 3.0 0.6 0.8 0.8 0.8
1 MHz 0.4 0.6 0.6 0.6 0.2 0.4 0.4 0.4
HSI clock,
PLL on
48 MHz 14 15.3 15.3 16.0 3.8 4.0 4.1 4.2
32 MHz 9.5 10.2 10.2 10.7 2.6 2.7 2.8 2.8
24 MHz 7.3 7.8 7.8 8.3 2.0 2.1 2.1 2.1
HSI clock,
PLL off
8 MHz 2.6 2.9 2.9 3.0 0.6 0.8 0.8 0.8
1. Data based on characterization results, not tested in production unless otherwise specified.
2. Data based on characterization results and tested in production with code executing from RAM.