We are using the MSP430F5328IZQER as the controller on multiple products and each of these products require low current consumption. When in LPM3 all these products pull 7 uA (which is what is expected) but this is only the case in a controlled environment with very low humidity. With modest humidity LPM3 current can go over 100 uA - a slow drift (30 seconds) for the current to reach 100 uA.
We are using an external 32 KHz crystal which is the clock source for the wake-up timer when in LPM3 mode.
Has anyone else seen anything like this using any of the MSP430 controllers or have a solution?