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flying_car
Explorer
February 4, 2026
Solved

STM32G474RET6 VREF connection

Hello,

I am planning to use the STM32G474RET6 and would like to confirm whether I can use the internal VREFBUF. This product's package is LQFP-64 and while reading the datasheet I noticed the note : ''The VREF+ pin is double-bonded with VDDA on some packages''. Could you verify whether the internal reference voltage can be used with this package?

 

Thanks. 

 

mƎALLEm
mƎALLEmBest answer
ST Technical Moderator
February 4, 2026

Hello @flying_car and welcome to the ST community,

mALLEm_0-1770198599331.png

You can use the internal VREFBUF with the STM32G474RET6 in the LQFP-64 package, as the VREF+ pin is available and not double-bonded with VDDA. 

To give better visibility on the answered topics, please click "Best answer" on the reply which solved your issue or answered your question.
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mƎALLEm
mƎALLEmBest answer
ST Technical Moderator
February 4, 2026

Hello @flying_car and welcome to the ST community,

mALLEm_0-1770198599331.png

You can use the internal VREFBUF with the STM32G474RET6 in the LQFP-64 package, as the VREF+ pin is available and not double-bonded with VDDA. 

To give better visibility on the answered topics, please click "Best answer" on the reply which solved your issue or answered your question.
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