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STM32F303VC 数据表(PDF) 54 Page - STMicroelectronics |
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STM32F303VC 数据表(HTML) 54 Page - STMicroelectronics |
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54 / 133 page  Electrical characteristics STM32F302xx/STM32F303xx 54/133 Doc ID 023353 Rev 5 6.1.6 Power supply scheme Figure 11. Power supply scheme 1. Dotted lines represent the internal connections on low pin count packages, joining the dedicated supply pins. 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. MS19875V3 Po wer swi tch VBAT GP I/O s OUT IN Kernel logic (CPU, Digital & Memories) Backup circuitry (LSE,RTC, Backup registers) Wake-up logic 100 nF + 1 × 4.7 μF 1.65 - 3.6V Regulator VDDA VSSA ADC/ DAC IO Logic VDD 10 nF + 1 μF VDDA VREF+ VREF- VDD VSS 4 × 3 × VREF 10 nF + 1 μF 4 × |
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