The MMA8452, MMA8451, MMA8652, and FXLS8471 have all been discontinued / end-of-life / last-time-buy by Mouser and Digikey. Is NXP exiting the Accelerometer business?
fyi... Rochester Electronics has acquired many of the Accelerometer devices for customers who are unable to change a board design. Please visit rocelec.com to view our extensive NXP Accelerometer inventory.