MT41K128M16JT-125 AAT:K

MT41K128M16JT-125 AAT:K is the automotive-grade ordering code of the Micron 2 Gb DDR3L SDRAM in the 128 Meg x 16 configuration: a 1.35 V DDR3L device (1.283 V to 1.45 V) running the -125 speed grade (800 MHz clock, DDR3-1600 data rate, CL 11) in a 96-ball 8 x 14 mm FBGA package, built on the same die family as the commercial and industrial codes already listed here. The AAT segment of the part number is the automotive temperature and certification option (AEC-Q100 grade), and the space before it plus the:K revision suffix are part of the Micron orderable number, so the code must be quoted character for character. The selection point is qualification, not performance: the electrical interface, timing and footprint are shared with the base MT41K128M16JT-125, so an existing DDR3L layout carries over, while the automotive code brings the AEC-Q100 documentation set that vehicle and transportation programs require at PPAP. Selection advice: use the AAT:K code for automotive or AEC-documented designs, the IT:K code (also listed) for industrial designs that do not need automotive certification, and the plain:K code for commercial temperature designs; do not substitute between them on a controlled BOM without checking the temperature grade on the drawing.