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Some problem about different batch of  MKL16

Question asked by d h on Mar 18, 2020
Latest reply on Mar 25, 2020 by Felipe García

When I burned same code of  low power mode,LLS0,into the the type of MCU, the current of mcu is not different. It took me a lot of time to find the problem. 

 

I bought two different batch of the mcu,MKL16.There is just a little different on the surface of the chip. The new one is CRTKJE at the last line,and the od one is CRAKAG.

 

However, the chip of CRTKJE burned with the same code cannot reach 2uA in the LLS0 at the same PCB.

 

I wanna know whether the chip is a counterfeit or the different batch has some different and user need to set the chip particually.

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