AM6442: Power connection when MMC0 is not used

Daisuke Maeda

Guru 20465 points

Part Number: AM6442

Our customer is concerned about the power connection when MMC0 is not used.

For VDD_MMC0 and VDD_DLL_MMC0, the datasheet describes that if MMC0 is not used, each of these balls must be connected to the same power source as VDD_CORE.

VDD_MMC0 and VDD_DLL_MMC0 are 0.85V inputs, but if the LP873364 is used, the power source to VDD_CORE is 0.75V.

If MMC0 is not used, is the above power connection correct?

Best regards,

Daisuke

over 4 years ago

+1 peaves over 4 years ago

TI__Guru 64995 points

We are planning to address this question by placing the following note on VDD_MMC0 and VDD_DLL_MMC0 in the ROC table of the next datasheet revision.

VDD_MMC0 and VDDD_DLL_MMC0 must be connected to the same power source as VDD_CORE when MMC0 is not used. In this case, VDD_MMC0 and VDDD_DLL_MMC0 may be operated at a nominal voltage of 0.75 or 0.85.

Regards,
Paul

0 Daisuke Maeda over 4 years ago in reply to peaves

Guru 20465 points

Hi Paul-san,

Thank you for your reply.

Best regards,

Daisuke

Processors

Processors forum

AM6442: Power connection when MMC0 is not used