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HAgar.1
Associate II
July 10, 2021
Question

What values of pull-up resistors should be used for the BOOT0 and BOOT1 pins in the STM32WB30CE MCU? They are not mentioned in the datasheet for the MCU.

  • July 10, 2021
  • 3 replies
  • 1704 views

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3 replies

TDK
Super User
July 10, 2021

10 kOhm is typical, but the pin is floating internally so values far higher than this will work as well without drawing additional current.

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HAgar.1
HAgar.1Author
Associate II
July 11, 2021

What values would you suggest?

TDK
Super User
July 11, 2021

10 kOhm.

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Uwe Bonnes
Chief
July 11, 2021

If working in a high temperature environment, leckage current increase substantial and the 10 kOhm might need reconsideration.

HAgar.1
HAgar.1Author
Associate II
July 11, 2021

How high are we talking about?

Uwe Bonnes
Chief
July 11, 2021

To be one the safe side, look at the max. values in the appropriate datasheet.

HAgar.1
HAgar.1Author
Associate II
July 11, 2021

That's the issue, they are not mentioned in the datasheet for this MCU