STM32F401CDU6 datasheet(111/135 Pages) STMICROELECTRONICS

Il numero della parte	STM32F401CDU6

Spiegazioni elettronici	Clock, reset and supply management

PDF	135 Pages

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Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

Homepage	http://www.st.com

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111 / 135 page

DocID025644 Rev 3

111/135

STM32F401xD STM32F401xE

Electrical characteristics

114

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 10 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+ and VREF- inputs are both available on UFBGA100. VREF+ is also available on LQFP100. When

VREF+ and VREF- are not available, they are internally connected to VDDA and VSSA.

Figure 43. Power supply and reference decoupling (VREF+ connected to VDDA)

1. VREF+ and VREF- inputs are both available on UFBGA100. VREF+ is also available on LQFP100. 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)

STM32F401CDU6 Scheda tecnica(PDF) 111 Page - STMicroelectronics