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STM32H745II Datasheet(PDF) 192 Page - STMicroelectronics

Part # STM32H745II
Description  Dual 32-bit Arm® Cortex®-M7 up to 480MHz and -M4 MCUs,up to 2MB Flash, 1MB RAM, 46 com. and analog interfaces, SMPS
PDF  252 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32H745II Datasheet(HTML) 192 Page - STMicroelectronics

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Electrical characteristics
STM32H745xI/G
192/252
DS12923 Rev 1
General PCB design guidelines
Power supply decoupling should be performed as shown in Figure 44 or Figure 45,
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 44. 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 45. 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.
MSv50648V1
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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