STM32F383RC datasheet(53/125 Pages) STMICROELECTRONICS

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STM32F383xx

Electrical characteristics

109

6.1.6

Power supply scheme

Figure 10. 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

MS30329V3

Analog:

RCs, PLL, COMP,

...

GP I/O s

OUT

Kernel logic

(CPU,

Digital

& Memories)

Backup circuitry

(LSE,RTC,

Backup registers)

Wakeup logic

2 × 100 nF

+ 1 × 4.7 μF

VDDA

VSSA

ADC/

DAC

Logic

@VDD

10 nF

+ 1 μF

VDDA

VREF+

VREF-

VDD

VSS

3 ×

2 ×

Sigma

Delta

ADCs

10 nF

+ 1 μF

VDDSD12

VDDSD3

VSSSD

10 nF

+ 1 μF

VREFSD+

VREFSD-

10 nF

+ 1 μF

VREFSD+

GP I/O s

OUT

Logic

GP I/O s

OUT

Logic

10 nF

+ 1 μF

VREF

REF+

1.8 V

BAT

@VDDSD3

@VDDSD12

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