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AN4635 датащи(PDF) 28 Page - STMicroelectronics

номер детали AN4635
подробное описание детали  Minimization of power consumption using LPUART in microcontrollers of the STM32L0 series
PDF  34 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4635 датащи(HTML) 28 Page - STMicroelectronics

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Power consumption comparison
AN4635
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DocID027290 Rev 1
6.11
Voltage regulator settings
Setting lower core voltage level is an easy and straightforward way to save energy.
In Figure 12 it is demonstrated that even with HSI clock the run mode can be significantly
more current-hungry just by changing the voltage.
Note that the setting has little or no influence on idle mode.
Figure 12. Comparison between voltage regulator settings
Baud rate
57600
SW used
Interrupt operation (Com IT)
Table 13. Configurations - HSI vs. MSI (continued)
Curve in Figure 11
Black
Red
Table 14. Configurations - Voltage regulator settings
Curve in Figure 12
Red
Black
Green
Idle mode between
transmissions
Sleep
JTAG interface
OFF
Current average
over phases 2, 3 and 4
70.31 µA
71.19 µA
71.84 µA
Clock
4 MHz HSI
Voltage regulator
Range 3
Range 2
Range 1
AHB/APB ratio
1/1



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