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STM32F407IG Datasheet(PDF) 122 Page - STMicroelectronics

Part # STM32F407IG
Description  ARM Cortex-M4 32b MCUFPU, 210DMIPS, up to 1MB Flash/1924KB RAM, USB OTG HS/FS, Ethernet, 17 TIMs, 3 ADCs, 15 comm. interfaces & camera
PDF  167 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32F407IG Datasheet(HTML) 122 Page - STMicroelectronics

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Electrical characteristics
STM32F405xx, STM32F407xx
122/167
Doc ID 022152 Rev 2
General PCB design guidelines
Power supply decoupling should be performed as shown in Figure 49 or Figure 50,
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 49.
Power supply and reference decoupling (VREF+ not connected to VDDA)
1.
VREF+ and VREF– inputs are both available on UFBGA176. VREF+ is also available on LQFP100, LQFP144,
and LQFP176. When VREF+ and VREF– are not available, they are internally connected to VDDA and VSSA.
Figure 50.
Power supply and reference decoupling (VREF+ connected to VDDA)
1.
VREF+ and VREF– inputs are both available on UFBGA176. VREF+ is also available on LQFP100, LQFP144,
and LQFP176. 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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