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STM32H7 bảng dữ liệu(PDF) 172 Page - STMicroelectronics

tên linh kiện STM32H7
Giải thích chi tiết về linh kiện  32-bit Arm® Cortex®-M7 480MHz MCUs, up to 2MB flash, up to 1MB RAM, 46 com. and analog interfaces
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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STM32H7 bảng dữ liệu(HTML) 172 Page - STMicroelectronics

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Electrical characteristics (rev Y)
STM32H742xI/G STM32H743xI/G
172/357
DS12110 Rev 10
General PCB design guidelines
Power supply decoupling should be performed as shown in Figure 42 or Figure 43,
depending on whether VREF+ is connected to VDDA or not. The 100 nF capacitors should be
ceramic (good quality). They should be placed them as close as possible to the chip.
Figure 42. Power supply and reference decoupling (VREF+ not connected to VDDA)
1. VREF+ input is available on all package whereas the VREF– s available only on UFBGA176+25 and
TFBGA240+25. When VREF- is not available, it is internally connected to VDDA and VSSA.
Figure 43. Power supply and reference decoupling (VREF+ connected to VDDA)
1. VREF+ input is available on all package whereas the VREF– s available only on UFBGA176+25 and
TFBGA240+25. When VREF- is not available, it is internally connected to VDDA and VSSA.
MSv50648V2
1 μF // 100 nF
1 μF // 100 nF
STM32
VREF+
(1)
VSSA/VREF-
(1)
VDDA
MSv50649V1
1 μF // 100 nF
STM32
VREF+/VDDA
(1)
VREF-/VSSA
(1)



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