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T
Tatmaz
Associate
June 23, 2026
Solved

LSM6DSO Pins 10 and 11

  • June 23, 2026
  • 1 reply
  • 14 views

Hello, we are planning to use LSM6DSO in Mode 1, but PCB is fixed and pins 10 and 11 are connected to GND. This conflicts with LSM6DSO datasheet but I was wondering if it is still OK to connect them to GND. Can you clarify on this?

Best answer by Federica Bossi

Hi ​@Tatmaz ,

For LSM6DSO Mode 1, pins 10 (OCS_Aux) and 11 (SDO_Aux) are not meant to be tied to GND.
According to the datasheet, pin 10 should be left unconnected, and pin 11 should be left unconnected or tied to VDDIO.
So if your PCB has these pins hard-wired to GND, it is not the recommended configuration and behavior is not guaranteed by ST.

1 reply

Federica Bossi
Federica BossiBest answer
ST Technical Moderator
July 2, 2026

Hi ​@Tatmaz ,

For LSM6DSO Mode 1, pins 10 (OCS_Aux) and 11 (SDO_Aux) are not meant to be tied to GND.
According to the datasheet, pin 10 should be left unconnected, and pin 11 should be left unconnected or tied to VDDIO.
So if your PCB has these pins hard-wired to GND, it is not the recommended configuration and behavior is not guaranteed by ST.

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T
TatmazAuthor
Associate
July 21, 2026

Hi Federica,

 

Thank you for the answer. I am confused about one thing, you suggested that connecting pins 10 and 11 to GND is not a problem for LSM6DSV320X in the topic below, is it problematic only for LSM6DSO?

 

 

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