Single 16-bit DDR3 on SAMA5D27

Discussion around products based on ARM Cortex-A5 core.

Moderator: nferre

fologicio
Posts: 1
Joined: Tue Apr 30, 2019 12:54 pm

Single 16-bit DDR3 on SAMA5D27

Tue Apr 30, 2019 1:04 pm

Dear fellow members,

We'd like to connect a single DDR3 chip to SAMA5D27 on our custom board using 16-bit interface. Is it OK to keep the unused pins (D[16:31], DQM[2:3] and DSQ[2:3]), or do these pins need to be connected to GND, or DDR_VREF or VDDIODDR?
blue_z
Location: USA
Posts: 1978
Joined: Thu Apr 19, 2007 10:15 pm

Re: Single 16-bit DDR3 on SAMA5D27

Wed May 01, 2019 5:45 pm

Try asking Microchip Technical Support to expand their answer to "Proper connection for unused pins in SAMA5D2 devices".

Regards

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