Does anybody have an idea why an otherwise working MC68HC908JL8 would consume around 100mA? Of course it heats up, of course it sucks the juice out of the power supply...
I am using it with RC oscillator, the freq is correct.
It happens almost 50% of the 40 pieces I tried by now.
Pulling down RST will stop the over-current, even if the (test) program only has configuration.
Changing the controller USUALLY does not solve the problem.
I use them in another product where they perform wonderfully. There I use 3.3V supply; the failing ones get 5V.
It could also be a PCB layout issue, as the 5V regulator is about 7" away from the controller. The supply traces are wide with no loop; everybody got their own .1uF near the supply pins.
Running out of options/time.