In SX Microcontrollers, SX/B Compiler and SX-Key Tool, wikst wrote:

A diod lights up from 10mA? That is a rather big leak current since no other cables where attached to the chip (also tried with the reset-pin high -> same result).

The voltage between Vdd and Vss is 2.85V with my test settup, wich means that the resistence between Vdd and Vss is about 1kOhm, but when I measure the resistance between the pins without having the chip connected to anything, it shows between 0.6MOhm and 1.6MOhm, and when I connected my first (now fried) chip it melted the plastisc on my experiment before I realised what was happening. 

So it seems to me that the internal resistance decreases with increased voltage/current?

Since both the chips I've tried with had simular responce, either both the chips came from a faild series, or more likely: The settup is for some reason wrong.

Is it therefor possible that the misstake is in some of the following:

* Old version of chip -> different pin assignment from sxkeyman2_0
* Misred pin assigment (assumed chip was looked at from above for example)
* Mistake regarding persumption of modell (I have 28 long pins.. =)
* Lack of knowledge: do I need any futher comonents or pins assigned to make the internal resistance between Vdd and Vss high and stable to avoid short circuiting the chip?
* The uC gods are just testing my spirit

?

Thanks for the responce Bean, let me know if this told you something.

Esa

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