STM32F030x4 STM32F030x6 STM32F030x8
Electrical characteristics
6.1.6
Power supply scheme
Figure 10. Power supply scheme
LSE, RTC,
Wake-up logic
GP I/Os
VDD
2 × 100 nF
+ 1 × 4.7 μF
2 × VDD
2 × VSS
VDDA
VDDA
O UT
IO
Logic
IN
Regulator
Kernel logic
(CPU,
Digital
& Memories)
Caution:
10 nF
+ 1 μF
VSSA
VREF+
VREF-
ADC
Analog:
RCs, PLL,
...
MS32141V1
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.
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