Seeking Advice on Selecting Automotive MCU with Low Power Mode and Internal CAN Wake-Up

[Saturnseeker]

Hello NXP Community,

We are looking for an automotive-grade MCU known for low power consumption and the ability to internally wake up from sleep mode upon detecting CAN network activity. Key features I need include:

• Low power usage in sleep mode.
• Internal wake-up on CAN traffic.
• Reliable CAN message handling immediately after waking.

Could anyone recommend NXP MCUs that fit these criteria or share insights on configuring power management and CAN integration?

Thanks for your help

[danielmartynek]

Hello @Saturnseeker,

If you need the CAN module to reliably handle the messages, you need to use the Pretended Networking

https://www.nxp.com/docs/en/application-note/AN5293.pdf

For example, on S32K1xx, it is supported by FlexCAN0 only.

And the pretended networking is functional in Stop1/Stop2 but not VLPS

Refer to the datasheet for power consumption specification in the stop modes.

Regards,

Daniel