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Pull-up resistor on Memory TQ pin.

Meir Sasson
Prodigy 150 points


Why Mistral EVM use Pull-up resistor (R57, 10K to VIO) on OMAP AH11 ball (feed-thru to AC9 top ball). Micron POP memory (MT29C4G48MAZAPAKQ-5 IT) AC9 ball is named TQ pin. TQ is HIGH when LPDDR TJ exceeds 85C. (TQ is Temperature Sensor Output pin).

  • 0
    TI__Guru 64560 points

    Which version of the schematics for the processor module are you referencing?

    Looking at the latest schematics from Mistral's website for the processor module (0.4mm with POP), AH11 goes into a 0 ohm resistor that is designated as "DNI" or Do Not Install.  Secondly, the other end of that resistor is floating.