Dear Sir or Madam,
My customer wants to keep only VDD voltage for SD card during 256 ms, to prevent data destruction at the power off.
(i.e. NVCC_SD is Low. VDD voltage was kept for 256 ms)
But, because DATA3 of SD card has internal pull-up, the leak voltage occurs via SD_DATA3 and NVCC_SD line.
There are possibility that the leak voltage occurs about SD_DATA3=700[mV] and NVCC_SD=150[mV] during power off to 256ms by customer's measured data on the their past i.MX6 product.
*Refer to attache file.
If the system drops on 0[V] by next time power on, is there possibility of the latch-up of i.MX6?