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STM32F469AE bảng dữ liệu(PDF) 161 Page - STMicroelectronics

tên linh kiện STM32F469AE
Giải thích chi tiết về linh kiện  Arm® Cortex®-M4 32b MCUFPU, 225DMIPS, up to 2MB Flash/3844KB RAM, USB OTG HS/FS, Ethernet, FMC, dual Quad-SPI, Graphical accelerator, Camera IF, LCD-TFT & MIPI DSI
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STM32F469AE bảng dữ liệu(HTML) 161 Page - STMicroelectronics

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DS11189 Rev 7
161/220
STM32F469xx
Electrical characteristics
191
General PCB design guidelines
Power supply decoupling should be performed as shown in Figure 56 or Figure 57,
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 56. Power supply and reference decoupling (VREF+ not connected to VDDA)
1. VREF+ and VREF– inputs are both available on UFBGA176 and TFBGA216. VREF+ is also available on
LQFP100, LQFP144, LQFP176 and LQFP208. When VREF+ and VREF– are not available, they are
internally connected to VDDA and VSSA.
Figure 57. Power supply and reference decoupling (VREF+ connected to VDDA)
1. VREF+ and VREF– inputs are both available on UFBGA176 and TFBGA216. VREF+ is also available on
LQFP100, LQFP144, LQFP176 and LQFP208. When VREF+ and VREF– are not available, they are
internally connected to VDDA and VSSA.
MS38278V1
STM32F
1 μF // 10 nF
1 μF // 10 nF
VREF+
(1)
VSSA/VREF+
(1)
VDDA
MS38279V1
STM32F
1 μF // 10 nF
VREF+/VDDA
(1)
VREF-/VDDA
(1)



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