AM6442: PCB layout guidelines for MMCSD0(eMMC) and MMCSD1(SD card)

Koichiro Tashiro

Part Number: AM6442

Hi,

I have a question from my customer.
Do we have any PCB layout guidelines (max. length, impedance matching, etc.) for MMCSD0/1?

I know there is schematic checklist, but there is no layout guidelines for MMC.
https://www.ti.com/lit/an/spracu5b/spracu5b.pdf

Thanks and regards,
Koichiro Tashiro

over 1 year ago

+1 Kallikuppa Sreenivasa over 1 year ago

TI__Guru**** 165529 points

Hello Koichiro Tashiro

Thank you for the query.

The timing characteristics are provided in the datasheet.

Recommendation is to follow general high speed routing guidelines.

Is there a use case for the layout guidelines or do you have some specific questions?

Regards,

Sreenivasa

0 Kallikuppa Sreenivasa 3 months ago in reply to Kallikuppa Sreenivasa

TI__Guru**** 165529 points

Hi All,

Please note below.

Additionally for relevant peripherals, trace length and matching requirements are defined in the respective Timing Conditions table found in the timing sections of the datasheet.

Regards,

Sreenivasa

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AM6442: PCB layout guidelines for MMCSD0(eMMC) and MMCSD1(SD card)