STM32F103VB 데이터 시트보기 (PDF) - STMicroelectronics

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STM32F103VB

Performance line, ARM-based 32-bit MCU with Flash, USB, CAN, seven 16-bit timers, two ADCs and nine communication interfaces

STMicroelectronics 

STM32F103xx

Electrical characteristics

General PCB design guidelines

Power supply decoupling should be performed as shown in Figure 25 or Figure 26,

depending on whether VREF+ is connected to VDDA or not. The 10 nF capacitors should be

ceramic (good quality). They should be placed them as close as possible to the chip.

Figure 25. Power supply and reference decoupling (VREF+ not connected to VDDA)

STM32F103xx

VREF+

(see note 1)

1 µF // 10 nF

1 µF // 10 nF

VDDA

VSSA /VREF+

(see note 1)

1. VREF+ and VREF– inputs are available only on 100-pin packages.

ai14388

Figure 26. Power supply and reference decoupling (VREF+ connected to VDDA)

STM32F103xx

VREF+/VDDA

(See note 1)

1 µF // 10 nF

VREF–/VSSA

(See note 1)

1. VREF+ and VREF– inputs are available only on 100-pin packages.

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