Datasheet

DocID028800 Rev 1 91/200
STM32L431xx Electrical characteristics
168
Table 28. Typical current consumption in Run and Low-power run modes, with different codes
running from Flash, ART enable (Cache ON Prefetch OFF)
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)
2.37
mA
91
µA/MHz
Coremark 2.69 103
Dhrystone 2.1 2.74 105
Fibonacci 2.58 99
While(1) 2.30 88
Range 1
f
HCLK
= 80 MHz
Reduced code
(1)
8.53
mA
107
µA/MHz
Coremark 9.68 121
Dhrystone 2.1 9.76 122
Fibonacci 9.27 116
While(1) 8.20 103
I
DD
(LPRun)
Supply
current in
Low-power
run
f
HCLK
= f
MSI
= 2 MHz
all peripherals disable
Reduced code
(1)
211
µA
106
µA/MHz
Coremark 251 126
Dhrystone 2.1 269 135
Fibonacci 230 115
While(1) 286 143
1. Reduced code used for characterization results provided in Table 25, Table 26, Table 27.
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