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Associate II
Nov 3, 2026 7:10 AM UTC
Question

STM32F407 + Ethernet Schematic Review

Hi, 

I am Using STM32F407 for my project and I want to use RMII interface ethernet 10/100 Mbps.
I’m attaching the design I have implemented.
can anyone review and suggest if there is any improvement/changes required. 

 

Thanks, 
Mukesh K

3 replies

EXUE.2
ST Employee
Nov 3, 2026 7:55 AM UTC

generally, we also pull up REFCLKO pin to 3V3.

Associate II
Nov 3, 2026 9:17 AM UTC

​@EXUE.2 thanks for your input.

is there any other point you want to highlight?

is there any ST recommended PHY and design?

EXUE.2
ST Employee
Nov 3, 2026 9:29 AM UTC

no other suggestion. we also use this PHY for 100M ethernet.