STM32F217VG datasheet(60/173 Pages) STMICROELECTRONICS

部件名	STM32F217VG

功能描述	ARM-based 32-bit MCU, 150DMIPs, up to 1 MB Flash/1284KB RAM

PDF	173 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

60 / 173 page

Electrical characteristics

STM32F21xxx

60/173

Doc ID 17050 Rev 8

5.1.6

Power supply scheme

Figure 16.

Power supply scheme

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.

To connect REGOFF pin, refer to Section 2.2.16: Voltage regulator.

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

OFF.

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

MS19041V2

VDD

1/2/...14/15

Analog:

RCs, PLL,

...

Po wer swi tch

VBAT

GP I/O s

OUT

Kernel logic

(CPU,

digital

& RAM)

Backup circuitry

(OSC32K,RTC,

Backup registers,

backup RAM)

Wakeup logic

15 × 100 nF

+ 1 × 4.7 μF

1.8-3.6 V

Voltage

regulator

VSS

1/2/...14/15

VDDA

VREF+

VREF-

VSSA

ADC

Logic

VDD

100 nF

+ 1 μF

VREF

100 nF

+ 1 μF

VDD

Flash memory

VCAP_1

VCAP_2

2 × 2.2 μF

REGOFF

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