topic Re: i.MX processors using DDR3x16 and DDR4x16 in i.MX Processors

i.MX processors using DDR3x16 and DDR4x16

simonng — Mon, 27 Sep 2021 06:52:00 GMT

Hi,

I am looking for processors that supporting DDR3x16 and DDR4x16.

For DDR3x16, the memory density is 8Gb per CS and the maximum speed is 2133Mbps. Do you have any recommended processors?

For DDR4x16, the memory density is 32Gb per CS and the maximum speed is 3200Mbps. Do you have any recommended processors?

Are there any EVK boards for the recommended processors?

Thanks.

Re: i.MX processors using DDR3x16 and DDR4x16

Rita_Wang — Wed, 29 Sep 2021 07:26:16 GMT

You can consider i.MX8MN/i.MX8MM/i.MX8MQ

https://www.nxp.com/products/processors-and-microcontrollers/arm-processors/i-mx-applications-processors/i-mx-8-processors/i-mx-8m-nano-family-arm-cortex-a53-cortex-m7:i.MX8MNANO

https://www.nxp.com/products/processors-and-microcontrollers/arm-processors/i-mx-applications-processors/i-mx-8-processors/i-mx-8m-mini-arm-cortex-a53-cortex-m4-audio-voice-video:i.MX8MMINI

https://www.nxp.com/products/processors-and-microcontrollers/arm-processors/i-mx-applications-processors/i-mx-8-processors/i-mx-8m-family-armcortex-a53-cortex-m4-audio-voice-video:i.MX8M

Re: i.MX processors using DDR3x16 and DDR4x16

simonng — Wed, 29 Sep 2021 08:33:33 GMT

Hi Rita,

My target DDR4x16 DRAM is Micron 32Gb, x16, 1.2V TwinDie Single-Rank DDR4 SDRAM.

https://www.micron.com/products/dram/ddr4-sdram/part-catalog/mt40a2g16skl-062e

Does any one of the suggested processor can support it?

Thanks

Re: i.MX processors using DDR3x16 and DDR4x16

Rita_Wang — Thu, 30 Sep 2021 02:45:10 GMT

You need to see the DDR datasheet in details and also need to see our RM to see which is better and can work on it.

Re: i.MX processors using DDR3x16 and DDR4x16

simonng — Thu, 30 Sep 2021 03:58:02 GMT

Hi Rita,

I checked the DRAM datasheet. It has 17-bit Row, 10-bit Column, 2-bit BA and 2-bit BG. So it is x16 device with BG0 and BG1. From the latest version of RPA of 8MQ, 8NANO and 8MINI, the largest density per Device is 16Gb. I can't set it to 32Gb. So I wonder if any processors that can support DDR4x16 1CS with 32Gb density.

Thanks.

Re: i.MX processors using DDR3x16 and DDR4x16

Rita_Wang — Wed, 13 Oct 2021 09:09:22 GMT

Sorry for late reply, I am on holiday leave. Here do not recommend you to use the DDR4x16 1CS with 32Gb density, we do not have that script for you. You can choose the DDR4x16 2CS with 16Gb density.

Re: i.MX processors using DDR3x16 and DDR4x16

simonng — Fri, 15 Oct 2021 10:58:08 GMT

OK, I understand. Thank you for your reply.