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a question regarding the use of pins PF11, PF12, PF13, and PF14 as ADC inputs.

RongShengWang
Associate III

Dear ST Support,

I am using the Nucleo-H753ZI development board (MB1364, STM32H753ZIT6) and have a question regarding the use of pins PF11, PF12, PF13, and PF14 as ADC inputs.

According to the UM2407 User Manual, these pins are stated as not usable for ADC input on this board. However, when reviewing the schematic (MB1364-H753ZI-C01), these pins appear to be free of any conflicting components or functions, and they are shown as connected to ADC-capable channels on the STM32H753ZIT6 (e.g., ADC1_INP2, ADC1_INP6, etc.).

Could you please clarify the following:

  1. Are PF11–PF14 officially supported for ADC input on the Nucleo-H753ZI (MB1364)?
  2. If not, what is the reason for the restriction in UM2407 — is it due to silicon limitations, board layout, or other design constraints?
  3. Is there a specific board revision or condition under which these pins can be used safely as ADC inputs?

I would appreciate your guidance, as I need to use as many ADC inputs as possible for my application, and these pins would be very helpful if usable.

Best regards,

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