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STM32F205RB bảng dữ liệu(PDF) 125 Page - STMicroelectronics

tên linh kiện STM32F205RB
Giải thích chi tiết về linh kiện  ARM-based 32-bit MCU, 150DMIPs, up to 1 MB Flash/1284KB RAM
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STM32F205RB bảng dữ liệu(HTML) 125 Page - STMicroelectronics

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STM32F20xxx
Electrical characteristics
177
General PCB design guidelines
Power supply decoupling should be performed as shown in Figure 53 or Figure 54,
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 53. Power supply and reference decoupling (VREF+ not connected to VDDA)
1. VREF+ and VREF– inputs are both available on UFBGA176 package. VREF+ is also available on all packages
except for LQFP64. When VREF+ and VREF– are not available, they are internally connected to VDDA and
VSSA.
Figure 54. Power supply and reference decoupling (VREF+ connected to VDDA)
1. VREF+ and VREF– inputs are both available on UFBGA176 package. VREF+ is also available on all packages
except for LQFP64. When VREF+ and VREF– are not available, they are internally connected to VDDA and
VSSA.
V REF+
STM32F
V DDA
V SSA/V REF-
1 µF // 10 nF
1 µF // 10 nF
ai17535
(See note 1)
(See note 1)
VREF+/VDDA
STM32F
1 µF // 10 nF
VREF–/VSSA
ai17536
(See note 1)
(See note 1)



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