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STM32G474RET6 VREF connection

flying_car
Visitor

‎2026-02-04 1:46 AM - last edited on ‎2026-02-04 2:03 AM by Community manager

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. 

 

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mƎALLEm
ST Employee

‎2026-02-04 1:51 AM

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. 

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