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Mhonj.1
Mhonj.1
Visitor II
Dec 1, 2021 3:06 PM UTC
Solved

Does STM32F412 require the external USB termination resistor? The datasheet and manual don't indicate anything about it. Thanks

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TDK
TDKBest answer
Dec 1, 2021 3:09 PM UTC

The STM32F412 has a built in pull resistors on the data lines. I'm sure it's in the reference manual.

0693W00000GZfn3QAD.png 

You can also use this document to quickly check which series have integrated resistors:

https://www.st.com/resource/en/application_note/dm00296349-usb-hardware-and-pcb-guidelines-using-stm32-mcus-stmicroelectronics.pdf

"If you feel a post has answered your question, please click ""Accept as Solution""."
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TDK
TDKBest answer
Dec 1, 2021 3:09 PM UTC

The STM32F412 has a built in pull resistors on the data lines. I'm sure it's in the reference manual.

0693W00000GZfn3QAD.png 

You can also use this document to quickly check which series have integrated resistors:

https://www.st.com/resource/en/application_note/dm00296349-usb-hardware-and-pcb-guidelines-using-stm32-mcus-stmicroelectronics.pdf

"If you feel a post has answered your question, please click ""Accept as Solution""."
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