Datasheet

Electrical characteristics STM32L452xx
104/210 DocID029968 Rev 3
Table 33. 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_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)
2.35
mA
90
µA/MHz
Coremark 2.65 102
Dhrystone 2.1 2.75 106
Fibonacci 2.60 100
While(1) 2.35 90
Range 1
f
HCLK
= 80 MHz
Reduced code
(1)
8.45
mA
106
µA/MHz
Coremark 9.45 118
Dhrystone 2.1 9.85 123
Fibonacci 9.25 116
While(1) 8.45 106
I
DD_ALL
(LPRun)
Supply
current in
Low-power
run
f
HCLK
= f
MSI
= 2 MHz
all peripherals disable
Reduced code
(1)
225
µA
113
µA/MHz
Coremark 260 130
Dhrystone 2.1 270 135
Fibonacci 245 123
While(1) 285 143
1. Reduced code used for characterization results provided in Table 27, Table 29, Table 31.
Table 34. Typical current consumption in Run, with different codes running from Flash,
ART enable (Cache ON Prefetch OFF) 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)
1.01
mA
39
µA/MHz
Coremark 1.14 44
Dhrystone 2.1 1.19 46
Fibonacci 1.12 43
While(1) 1.01 39
f
HCLK
= 80 MHz
Reduced code
(2)
3.04 38
Coremark 3.40 42
Dhrystone 2.1 3.54 44
Fibonacci 3.33 42
While(1) 3.04 38
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