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STM32L4P5CE 数据表(PDF) 135 Page - STMicroelectronics |
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STM32L4P5CE 数据表(HTML) 135 Page - STMicroelectronics |
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135 / 311 page  DS12903 Rev 2 135/311 STM32L4P5xx Electrical characteristics 277 6.1.6 Power supply scheme Figure 26. STM32L4P5xx 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. MSv45701V2 VDDIO2 VDD IO logic Kernel logic (CPU, Digital & Memories) Backup circuitry (LSE, RTC, Backup registers) IN OUT Regulator GPIOs 1.55 – 3.6 V IN OUT GPIOs n x 100 nF +1 x 4.7 μF m x100 nF IO logic +4.7 μF m x VDDIO2 m x VSS n x VSS n x VDD VBAT VCORE Power switch VDDIO2 VDDIO1 ADCs/ DACs/ OPAMPs/ COMPs/ VREFBUF VREF+ VREF- VDDA 10 nF +1 μF VDDA VSSA VREF 100 nF +1 μF 1.00 – 1.32 V 2 x VDD12 |
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