STM32F215RGH7TR 查看數據表（PDF） - STMicroelectronics

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STM32F215RGH7TR

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

STMicroelectronics 

Electrical characteristics

5.1.6 Power supply scheme

Figure 16. Power supply scheme

VBAT

1.8-3.6 V

Po wer swi tch

STM32F21xxx

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)

REGOFF

VDD

100 nF

+ 1 μF

VREF

100 nF

+ 1 μF

VDDA

VREF+

VREF-

VSSA

Flash memory

ADC

Analog:

RCs, PLL,

...

MS19041V2

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 pin, 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.

60/173

Doc ID 17050 Rev 8

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