Hi, I have an issue with the BMA253. Out of 20 units, 20 do not seem to be functioning and I would like to verify by the device marking that the part is/was a valid part. The marking currently on the chip is: 2BA 8A I would appreciate it if someone could verify that the marking is valid or provide further documentation to explain exactly what the marking means in terms of date produced and product number. Thanks, KMM
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