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STM32U073RCU6TR Datasheet(PDF) 42 Page - STMicroelectronics |
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STM32U073RCU6TR Datasheet(HTML) 42 Page - STMicroelectronics |
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42 / 146 page  6.1.6 Power supply scheme Figure 13. Power supply scheme 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/ DAC/ OPAMPs/ COMPs/ VREFBUF VREF+ VREF- VDDA 10 nF +1 µF VDDA VSSA VREF 100 nF+1 µF Caution: Each power supply pair (such as VDD/VSS, VDDA/VSSA) 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. STM32U073x8/B/C Electrical characteristics DS14548 - Rev 2 page 42/146 |
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