ST STM32F7 Series User Manual

DocID027559 Rev 5 43/54
AN4661 Recommended PCB routing guidelines for STM32F7 Series devices
53
Figure 26. Six layer PCB stack-up example
8.2 Crystal oscillator
Use the application note: Oscillator design guide for STM8S, STM8A and STM32
microcontrollers (AN2867), for further guidance on how to layout and route crystal oscillator
circuits.
8.3 Power supply decoupling
An adequate power decoupling for STM32F7 Series is necessary to prevent an excessive
power noise and ground bounce noise. Please refer to
Section 1.2: Power supply scheme.
Figure 27 shows an example of placing bypass capacitors underneath STM32F7 Series
closer to pins and with less vias:
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&RUH
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/D\HUB,QQHU

ST STM32F7 Series Specifications

General

Brand	ST
Model	STM32F7 Series
Category	Microcontrollers
Language	English