Datasheet

DS10198 Rev 8 131/270
STM32L476xx Electrical characteristics
238
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)
2.9
mA
111
µA/MHz
Coremark 3.1 118
Dhrystone 2.1 3.1 119
Fibonacci 2.9 112
While(1) 2.8 108
Range 1
f
HCLK
= 80 MHz
Reduced code
(1)
10.2
mA
127
µA/MHz
Coremark 10.9 136
Dhrystone 2.1 11.0 137
Fibonacci 10.5 131
While(1) 9.9 124
I
DD_ALL
(LPRun)
Supply
current in
Low-power
run
f
HCLK
= f
MSI
= 2 MHz
all peripherals disable
Reduced code
(1)
272
µA
136
µA/MHz
Coremark 291 145
Dhrystone 2.1 302 151
Fibonacci 269 135
While(1) 269 135
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)
1.25
mA
48
µA/MHz
Coremark 1.34 51
Dhrystone 2.1 1.34 51
Fibonacci 1.25 48
While(1) 1.21 46
f
HCLK
= 80 MHz
Reduced code
(2)
3.67 46
Coremark 3.92 49
Dhrystone 2.1 3.95 49
Fibonacci 3.77 47
While(1) 3.56 44
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