STMicroelectronics Discovery kit for STM32L151/152 line - with STM32L152RC MCU STM32L152C-DISCO STM32L152C-DISCO Hoja De Datos
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STM32L152C-DISCO
DocID022799 Rev 6
STM32L15xCC STM32L15xRC STM32L15xUC STM32L15xVC
Electrical characteristics
111
6.3.4
Supply current characteristics
The current consumption is a function of several parameters and factors such as the
operating voltage, ambient temperature, I/O pin loading, device software configuration,
operating frequencies, I/O pin switching rate, program location in memory and executed
binary code. The current consumption is measured as described in
operating voltage, ambient temperature, I/O pin loading, device software configuration,
operating frequencies, I/O pin switching rate, program location in memory and executed
binary code. The current consumption is measured as described in
.
All Run-mode current consumption measurements given in this section are performed with a
reduced code that gives a consumption equivalent to Dhrystone code.
reduced code that gives a consumption equivalent to Dhrystone code.
Maximum current consumption
The MCU is placed under the following conditions:
V
DD
= 3.6 V
All I/O pins are in input mode with a static value at V
DD
or V
SS
(no load)
All peripherals are disabled except when explicitly mentioned
The Flash memory access time is adjusted depending on f
HCLK
frequency and voltage
range
Prefetch and 64-bit access are enabled in configurations with 1 wait state
When the peripherals are enabled fAPB1 = fAPB2 = fAHB
When fHCLK > 8 MHz PLL is ON and PLL inputs is equal to HSI = 8 MHz (if internal
clock is used) or HSE = 8 MHz (if HSE bypass mode is used)
clock is used) or HSE = 8 MHz (if HSE bypass mode is used)
The parameters given in
are derived from tests performed
under ambient temperature and V
DD
.
Table 18. Current consumption in Run mode, code with data processing running from Flash
Symbol
Parameter
Conditions
f
HCLK
Typ
Max
(1)
Unit
I
DD
(Run
from
Flash)
from
Flash)
Supply
current in
Run mode,
code
executed
from Flash
current in
Run mode,
code
executed
from Flash
f
HSE
= f
HCLK
up to 16
MHz included, f
HSE
=
f
HCLK
/2 above 16 MHz
(PLL ON)
(2)
Range 3, V
CORE
=1.2 V
VOS[1:0] = 11
1 MHz
285
400
µA
2 MHz
490
600
4 MHz
845
960
Range 2, V
CORE
=1.5 V
VOS[1:0] = 10
4 MHz
0.9
1.1
mA
8 MHz
1.8
2.1
16 MHz
3.5
3.9
Range 1, V
CORE
=1.8 V
VOS[1:0] = 01
8 MHz
2.3
2.8
16 MHz
4.3
4.9
32 MHz
8.2
9.4
HSI clock source (16
MHz)
MHz)
Range 2, V
CORE
=1.5 V
VOS[1:0] = 10
16 MHz
3.6
4
Range 1, V
CORE
=1.8 V
VOS[1:0] = 01
32 MHz
8.4
9.6
MSI clock, 65 kHz
Range 3, V
CORE
=1.2 V
VOS[1:0] = 11
65 kHz
47
110
µA
MSI clock, 524 kHz
524 kHz
135
190
MSI clock,
4.2 MHz
4.2 MHz
785
900
1. Based on characterization, not tested in production, unless otherwise specified.