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STM32L412R8I3XXX 数据表(PDF) 74 Page - STMicroelectronics |
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STM32L412R8I3XXX 数据表(HTML) 74 Page - STMicroelectronics |
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74 / 192 page  Electrical characteristics STM32L412xx 74/192 DS12469 Rev 8 6.1.6 Power supply scheme Figure 18. Power supply scheme Caution: Each power supply pair (VDD/VSS, VDDA/VSSA etc.) must be decoupled with filtering ceramic capacitors as shown above. These capacitors must be placed as close as possible to, or below, the appropriate pins on the underside of the PCB to ensure the good functionality of the device. MS49692V1 VDD IO logic Kernel logic (CPU, Digital & Memories) Backup circuitry (LSE, RTC, Backup registers) IN OUT Regulator GPIOs 1.55 – 3.6 V n x 100 nF +1 x 4.7 μF n x VSS n x VDD VBAT VCORE Power switch VDDIO1 ADCs/ OPAMPs/ COMPs/ VREF+ VREF- VDDA 10 nF +1 μF VDDA VSSA VREF 100 nF +1 μF |
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