Datasheet
Electrical characteristics STM32L431xx
92/200 DocID028800 Rev 1
Table 29. Typical current consumption in Run and Low-power run modes, with different codes
running from Flash, ART disable
Symbol Parameter
Conditions TYP
Unit
TYP
Unit
-
Voltage
scaling
Code 25 °C 25 °C
I
DD
(Run)
Supply
current in
Run mode
f
HCLK
= f
HSE
up to
48 MHz included,
bypass mode
PLL ON above
48 MHz
all peripherals
disable
Range 2
f
HCLK
= 26 MHz
Reduced code
(1)
2.66
mA
102
µA/MHz
Coremark 2.44 94
Dhrystone 2.1 2.46 95
Fibonacci 2.27 87
While(1) 2.20 84.6
Range 1
f
HCLK
= 80 MHz
Reduced code
(1)
8.56
mA
107
µA/MHz
Coremark 8.00 100
Dhrystone 2.1 7.98 100
Fibonacci 7.41 93
While(1) 7.83 98
I
DD
(LPRun)
Supply
current in
Low-power
run
f
HCLK
= f
MSI
= 2 MHz
all peripherals disable
Reduced code
(1)
310
µA
155
µA/MHz
Coremark 342 171
Dhrystone 2.1 324 162
Fibonacci 324 162
While(1) 384 192
1. Reduced code used for characterization results provided in Table 25, Table 26, Table 27.
Table 30. Typical current consumption in Run and Low-power run modes, with different codes
running from SRAM1
Symbol Parameter
Conditions TYP
Unit
TYP
Unit
-
Voltage
scaling
Code 25 °C 25 °C
I
DD
(Run)
Supply
current in
Run mode
f
HCLK
= f
HSE
up to
48 MHz included,
bypass mode
PLL ON above
48 MHz all
peripherals
disable
Range 2
f
HCLK
= 26 MHz
Reduced code
(1)
2.42
mA
93
µA/MHz
Coremark 2.18 84
Dhrystone 2.1 2.40 92
Fibonacci 2.40 92
While(1) 2.29 88
Range 1
f
HCLK
= 80 MHz
Reduced code
(1)
8.63
mA
108
µA/MHz
Coremark 7.76 97
Dhrystone 2.1 8.55 107
Fibonacci 8.56 107
While(1) 8.12 102
I
DD
(LPRun)
Supply
current in
Low-power
run
f
HCLK
= f
MSI
= 2 MHz
all peripherals disable
Reduced code
(1)
205
µA
103
µA/MHz
Coremark 188 94
Dhrystone 2.1 222 111
Fibonacci 204 102
While(1) 211 106
1. Reduced code used for characterization results provided in Table 25, Table 26, Table 27.
Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.