STM32F407IG datasheet(111/154 Pages) STMICROELECTRONICS

Part #	STM32F407IG

Description	USB OTG HS/FS, Ethernet, 17 TIMs, 3 ADCs, 15 comm. interfaces & camera

PDF	154 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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111 / 154 page

STM32F405xx, STM32F407xx

Electrical characteristics

Doc ID 022152 Rev 1

111/154

General PCB design guidelines

Power supply decoupling should be performed as shown in Figure 43 or Figure 44,

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 43.

Power supply and reference decoupling (VREF+ not connected to VDDA)

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 44.

Power supply and reference decoupling (VREF+ connected to VDDA)

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

ai17535

(See note 1)

VREF+/VDDA

STM32F

1 µF // 10 nF

VREF–/VSSA

ai17536

(See note 1)

STM32F407IG Datasheet(PDF) 111 Page - STMicroelectronics