Memory density and speed grade
The MT53E128M32D2DS-053 AAT:A is a 4 Gbit mobile LPDDR4 SDRAM organized as 128 Mwords by 32 bits, clocked at 1.866 GHz — the -053 speed bin. The 1.1 V core supply keeps dynamic power in check for thermally constrained automotive modules.
Housed in a 200-ball WFBGA (10 x 14.5 mm body), the package is surface-mount with a 0.50 mm ball pitch — typical for LPDDR4 routing on a 4-layer or 6-layer PCB. The tray packaging suits automated pick-and-place lines without reel retaping. The 32-bit data bus matches application processors and SoCs that expect a single LPDDR4 channel; the 1.866 GHz data rate delivers ~14.9 GB/s peak bandwidth before protocol overhead.