Datasheet

DocID027096 Rev 2 67/137
STM32L073xx Electrical characteristics
117
Table 30. Current consumption in Run mode, code with data processing running from
Flash memory
Symbol Parameter Condition
f
HCLK
(MHz)
Typ Max
(1)
Unit
I
DD
(Run
from Flash
memory)
Supply current in Run
mode code executed
from Flash memory
f
HSE
= f
HCLK
up to
16MHz included,
f
HSE
= f
HCLK
/2 above
16 MHz (PLL ON)
(2)
Range3,
Vcore=1.2 V
VOS[1:0]=11
1 190 250
µA2 345 380
4 650 670
Range2,
Vcore=1.5 V
VOS[1:0]=10
4 0,8 0,86
mA
8 1,55 1,7
16 2,95 3,1
Range1,
Vcore=1.8 V
VOS[1:0]=01
81,92,1
16 3,55 3,8
32 6,65 7,2
MSI clock source
Range3,
Vcore=1.2 V
VOS[1:0]=11
0,065 39 130
µA0,524 115 210
4,2 700 770
HSI clock source
(16MHz)
Range2,
Vcore=1.5 V
VOS[1:0]=10
16 2,9 3,2
mA
Range1,
Vcore=1.8 V
VOS[1:0]=01
32 7,15 7,4
1. Guaranteed by characterization results at 125 °C, unless otherwise specified.
2. Oscillator bypassed (HSEBYP = 1 in RCC_CR register).
Table 31. Current consumption in Run mode vs code type,
code with data processing running from Flash memory
Symbol Parameter Conditions f
HCLK
Typ Unit
I
DD
(Run
from
Flash
memory)
Supply
current in
Run mode,
code
executed
from Flash
memory
f
HSE
= f
HCLK
up to
16 MHz included, f
HSE
= f
HCLK
/2 above 16
MHz (PLL on)
(1)
Range 3,
V
CORE
=1.2 V,
VOS[1:0]=11
Dhrystone
4 MHz
650
µA
CoreMark 655
Fibonacci 485
while(1) 385
while(1), 1WS,
prefetch off
375
Range 1,
V
CORE
=1.8 V,
VOS[1:0]=01
Dhrystone
32 MHz
6,65
mA
CoreMark 6,9
Fibonacci 6,75
while(1) 5,8
while(1), prefetch off 5,5
1. Oscillator bypassed (HSEBYP = 1 in RCC_CR register).
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