STM32F205VC 데이터 시트보기 (PDF) - STMicroelectronics

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STM32F205VC

ARM-based 32-bit MCU, 150DMIPs, up to 1 MB Flash/128+4KB RAM, USB OTG HS/FS, Ethernet, 17 TIMs, 3 ADCs, 15 comm. interfaces & camera

STMicroelectronics 

STM32F20xxx

5.1.6 Power supply scheme

Figure 17. Power supply scheme

VBAT

1.8-3.6 V

Power switch

Electrical characteristics

Backup circuitry

(OSC32K,RTC,

Wakeup logic

Backup registers,

backup RAM)

GP I/Os

2 × 2.2 μF VVCCAAPP__12

VDD

15 × 100 nF

+ 1 × 4.7 μF

VDD

1/2/...14/15

VSS

1/2/...14/15

O UT

IN

Voltage

regulator

IO

Logic

Kernel logic

(CPU,

digital

& RAM)

VDD

REGOFF

IRROFF

VDDA

100 nF

+ 1 μF

VREF

100 nF

+ 1 μF

VREF+

VREF-

VSSA

Flash memory

ADC

Analog

RCs, PLL,

...

ai17527e

1. Each power supply pair 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.

2. To connect REGOFF and IRROFF pins, refer to Section 2.2.16: Voltage regulator.

3. The two 2.2 µF ceramic capacitors should be replaced by two 100 nF decoupling capacitors when the voltage regulator is

OFF.

4. The 4.7 µF ceramic capacitor must be connected to one of the VDD pin.

Doc ID 15818 Rev 9

61/177

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