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ZYu.1
Associate III
Oct 16, 2020 9:24 AM UTC
Solved

STM32G031G6Ux(UFQFPN28) has no pin to connect external crystal oscillator?

I have a project using STM32G031G6Ux(UFQFPN28), so in CubeMX I could not find the external crystal oscillator pins.So I want to know that whether this MCU  has the pin to connect external crystal oscillator?

Dose there have any documents about the design about this MCU,thanks.

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Tesla DeLorean
Tesla DeLoreanBest answer
Guru
Oct 16, 2020 12:45 PM UTC

It is expected as part of keeping the board size down that you reuse an existing clock source, ie TCXO for radio, or whatever, or that you use the internal oscillator

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4 replies

TDK
Oct 16, 2020 12:33 PM UTC

It has an OSC_IN on PC14, but no OSC_OUT pin. So you can hook it up to a clock source but it can't drive a crystal directly.

Details are in the datasheet:

https://www.st.com/resource/en/datasheet/stm32g031g6.pdf

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ZYu.1
ZYu.1Author
Associate III
Oct 16, 2020 12:50 PM UTC

thanks, ihave got it.

Tesla DeLorean
Tesla DeLoreanBest answer
Guru
Oct 16, 2020 12:45 PM UTC

It is expected as part of keeping the board size down that you reuse an existing clock source, ie TCXO for radio, or whatever, or that you use the internal oscillator

Tips, Buy me a coffee, or three.. PayPal Venmo (See Profile) Up vote any posts that you find helpful, it shows what's working..
ZYu.1
ZYu.1Author
Associate III
Oct 16, 2020 12:50 PM UTC

thanks