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STM32L476RGT which are the 5V tolerant pins? Where can I find these infomation in data sheet?

FHopp.1
Associate III

Hello, I use for STM32 (1.8V VDD) SPI communication with an slave temperature Sensor (3.5V basic voltage, detects high at 0,7*3,5V)

SCLK =PC10

SDO = PC11

SDI= PC12

CS = PC13

For that reason I want to use an external 3.5V Pullup. But I'm not sure if this is OK for pins

PC10/PC11/PC12/PC13. Can anybody tell me if this is OK?And where I can find these information in datasheet? I already looked in the AN4899 Application note, but coulkdn't find which pins are 5V tolerant. In special if PC10/11/12/13 are 5V tolerant.

Best regards

Fabian

1 ACCEPTED SOLUTION

Accepted Solutions
Imen.D
ST Employee

Hello @FHopp.1​ 

You can refer to the STM32L476xx datasheet, and see the tables:

  • Table 15: Legend/abbreviations used in the pinout table 
  • Table 16: STM32L476xx pin definitions table 0693W000006G18vQAC.png

Please mark my answer as best by clicking on the "Select as Best" button if it fully solved your issue. This will help other users find this solution more quickly.

Imen

When your question is answered, please close this topic by clicking "Accept as Solution".
Thanks
Imen

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1 REPLY 1
Imen.D
ST Employee

Hello @FHopp.1​ 

You can refer to the STM32L476xx datasheet, and see the tables:

  • Table 15: Legend/abbreviations used in the pinout table 
  • Table 16: STM32L476xx pin definitions table 0693W000006G18vQAC.png

Please mark my answer as best by clicking on the "Select as Best" button if it fully solved your issue. This will help other users find this solution more quickly.

Imen

When your question is answered, please close this topic by clicking "Accept as Solution".
Thanks
Imen