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Why can't MMA8451Q work? What's different between this two package?

Question asked by Cheng-Han Wu on Jan 22, 2018
Latest reply on Jan 25, 2018 by Cheng-Han Wu


We have used MMA8451Q in our product for a long time.
But we met a problem in reading data from MMA8451Q which bought from digikey at 2017/12/15

It seems that the I2C address changed.

Then, we found out the package between new and old ic were different. 

What's the different between this two package?

Or was there any revision recently?

And what information can I get on this two package?

Thank for help !!!