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Associate II
June 23, 2026
Solved

STM32U073CCT6 LSE

  • June 23, 2026
  • 1 reply
  • 47 views

Hi

 

We are developing a board with the STM32U073CCT6 CPU. Would it be possible to use a crystal with the following characteristics for the LSE?
32.768KHz Cl=6pF/ESR=50kR
In this case, what would be the recommended capacitor values?

BR

Gilberto

 

Best answer by mƎALLEm

Hello,

You can refer to this knowledge base article: How to select a compatible crystal and load capacitors for STM32 with layout guidelines

Or for more details to the Application note AN2867 “Guidelines for oscillator design on STM8AF/AL/S and STM32 MCUs/MPUs”

1 reply

mƎALLEm
mƎALLEmBest answer
ST Technical Moderator
June 23, 2026

Hello,

You can refer to this knowledge base article: How to select a compatible crystal and load capacitors for STM32 with layout guidelines

Or for more details to the Application note AN2867 “Guidelines for oscillator design on STM8AF/AL/S and STM32 MCUs/MPUs”

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