Datasheet

Electrical characteristics STM32L476xx
134/270 DS10198 Rev 8
Table 39. 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_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 2.9 111
Dhrystone 2.1 2.9 111
Fibonacci 2.6 100
While(1) 2.6 100
Range 1
f
HCLK
= 80 MHz
Reduced code
(1)
10.2
mA
127
µA/MHz
Coremark 10.4 130
Dhrystone 2.1 10.3 129
Fibonacci 9.6 120
While(1) 9.3 116
I
DD_ALL
(LPRun)
Supply
current in
Low-power
run
f
HCLK
= f
MSI
= 2 MHz
all peripherals disable
Reduced code
(1)
242
µA
121
µA/MHz
Coremark 242 121
Dhrystone 2.1 242 121
Fibonacci 225 112
While(1) 242 121
1. Reduced code used for characterization results provided in Table 27, Table 29, Table 31.
Table 40. Typical current consumption in Run mode, with different codes running from
SRAM1 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 1.25 48
Dhrystone 2.1 1.25 48
Fibonacci 1.12 43
While(1) 1.12 43
f
HCLK
= 80 MHz
Reduced code
(2)
3.67 46
Coremark 3.74 47
Dhrystone 2.1 3.70 46
Fibonacci 3.45 43
While(1) 3.34 42
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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