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Question, i.MX6SX unused pin handling

Question asked by AVNET JAPAN FAE (team share account) on Jun 7, 2016
Latest reply on Jun 30, 2016 by Victor Linnik

Dear team,


I would like to ask about the recommended connections for unused analog interfaces of i.MX6SoloX.

In i.MX6SX datasheet(IMX6SXCEC Rev.1), it is described in Table-5 that the recommended connection of unused VADC_IN[0:3] is float.

But in i.MX6SX hardware design guide(IMX6SXHDG, Rev.1), the recommended connection for unused VADC_IN[0:3] is said as connect to GND, in table-2-17.

Which is the truth?

I found difference on the recommended connections for unused VDD_AFE_1P2 and VDDA_AFE_3P3 as well between datasheet and hardware design guide.


Please show me which is correct about VDD_AFE_1P2 and VDDA_AFE_3P3 as well.