How to enter SEMC SDRAM into low power

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How to enter SEMC SDRAM into low power

257 次查看
rjengr
Contributor I

We are using a imxrt106F, with VDD_HIGH_IN, SNVS_IN, and DCDC_IN tied together. However the issue we see is entering into SNVS does not automatically put the SDRAM into low power mode as our SDRAM is constantly powered. We are seeing very high power consumption. How can we put the SDRAM into low power mode?

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218 次查看
Omar_Anguiano
NXP TechSupport
NXP TechSupport

If the SDRAM has a low power mode then you need to enter the command to send it to low power before setting the mcu at SNVS mode.

Ideally, SDRAM is powered-off on SNVS mode since external DC/DC(which powers SDRAM) is turned off.

Omar_Anguiano_0-1727894242690.png

Best regards,
Omar

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