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Associate II
Jun 16, 2026 7:31 AM UTC
Solved

Does STM32N655x0H3Q support 1000 Mbps Ethernet (Gigabit Ethernet)?

I would like to confirm whether the Ethernet MAC available in the STM32N655x0H3Q supports 1000 Mbps (Gigabit Ethernet) operation.

Andrew Neil
Andrew NeilBest answer
Super User
Jun 16, 2026 9:39 AM UTC

The Datasheet would be the place to check:

 

https://www.st.com/resource/en/datasheet/stm32n655x0.pdf

via: https://www.st.com/en/microcontrollers-microprocessors/stm32n655x0.html

A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.

8 replies

Andrew Neil
Andrew NeilBest answer
Super User
Jun 16, 2026 9:39 AM UTC
A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
sergey23
Associate
Jun 17, 2026 9:36 AM UTC

​@shreyas15 did you manage to test it ?

Andrew Neil
Super User
Jun 17, 2026 10:01 AM UTC

Do you have reason to believe that the Datasheet is lying?

A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
LCE
Principal III
Jun 17, 2026 10:05 AM UTC

Maybe the question was meant more like: 

Can I make that work in a few minutes without knowing anything about it?

😁

shreyas15Author
Associate II
Jul 8, 2026 7:31 AM UTC

​@mƎALLEm ​@sergey23 ​@LCE 
1G is supporting in this controller. I have tested it with netxduo web server.