Datasheet
Electrical characteristics STM32L452xx
106/210 DocID029968 Rev 3
Table 36. 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_ALL
(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)
2.75
mA
106
µA/MHz
Coremark 2.50 96
Dhrystone 2.1 2.50 96
Fibonacci 2.30 88
While(1) 2.20 84.6
Range 1
f
HCLK
= 80 MHz
Reduced code
(1)
8.85
mA
111
µA/MHz
Coremark 8.15 102
Dhrystone 2.1 8.15 102
Fibonacci 7.55 94
While(1) 7.95 99
I
DD_ALL
(LPRun)
Supply
current in
Low-power
run
f
HCLK
= f
MSI
= 2 MHz
all peripherals disable
Reduced code
(1)
340
µA
170
µA/MHz
Coremark 380 190
Dhrystone 2.1 355 178
Fibonacci 355 178
While(1) 405 203
1. Reduced code used for characterization results provided in Table 27, Table 29, Table 31.
Table 37. Typical current consumption in Run modes, with different codes running from
Flash, ART disable and power supplied by external SMPS (V
DD12
= 1.10 V)
Symbol Parameter
Conditions
(1)
TYP
Unit
TYP
Unit
-
Voltage
scaling
Code 25 °C 25 °C
I
DD_ALL
(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
f
HCLK
= 26 MHz
Reduced code
(2)
1.19
mA
46
µA/MHz
Coremark 1.08 41
Dhrystone 2.1 1.08 41
Fibonacci 0.99 38
While(1) 0.95 37
f
HCLK
= 80 MHz
Reduced code
(2)
3.18 40
Coremark 2.93 37
Dhrystone 2.1 2.93 37
Fibonacci 2.71 34
While(1) 2.86 36
1. All values are obtained by calculation based on measurements done without SMPS and using following parameters: SMPS
input = 3.3 V, SMPS efficiency = 85%, V
DD12
= 1.10 V
2. Reduced code used for characterization results provided in Table 27, Table 29, Table 31.
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