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Microphones (ST-MEMS) part number used in STM32H757I-EVAL

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priya_12
Associate II

‎2025-04-18 4:03 AM - last edited on ‎2025-04-18 4:25 AM by

Hi,
I am working on a project using STM32H757I-EVAL. I wanted to know what the model number of the microphone present in STM32H757I-EVAL. In the user manual, I could just find it as ST-MEMS digital microphones. Also, does it support external microphones? If so, how many can be used?

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mƎALLEm
ST Employee

‎2025-04-18 4:23 AM - edited ‎2025-04-18 4:32 AM

Hello @priya_12 and welcome to the ST community,

You can refer to the STM32H757I-EVALschematics:

mALLEm_0-1744975338361.png

The datasheet of the microphones: MP34DT05 

I think you cannot use other mics in parallel with those available on the board:

mALLEm_1-1744975810951.png

You need to remove SB54 and SB55 solder bridges to use other Mics on CN25 and CN26:

The Coupon connectors on the board:

mALLEm_0-1744975708479.png

Hope that answers your question.

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

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mƎALLEm
ST Employee

‎2025-04-18 4:23 AM - edited ‎2025-04-18 4:32 AM

Hello @priya_12 and welcome to the ST community,

You can refer to the STM32H757I-EVALschematics:

mALLEm_0-1744975338361.png

The datasheet of the microphones: MP34DT05 

I think you cannot use other mics in parallel with those available on the board:

mALLEm_1-1744975810951.png

You need to remove SB54 and SB55 solder bridges to use other Mics on CN25 and CN26:

The Coupon connectors on the board:

mALLEm_0-1744975708479.png

Hope that answers your question.

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