应该是国产遥遥领先的颗粒，不用质疑

群联封装的B47R

大唐的M2 ssd上面的。

采用3D TLC NAND颗粒印有的IA7BG94AYA字样，这是美光MICRON原厂176层堆叠3D TLC颗粒。

和美光的 IA7BG94AYA 命名真有些象。

NAND Flash
Manufacturer:Micron
Name:B47R FortisFlash
Part Number:IA5AG95AYA
Type:TLC
Technology:176-layer
Speed:1200 MT/s .. 1600 MT/s
Capacity:4 chips @ 1 Tbit
ONFI:4.1
Topology:Replacement Gate
Die Size:50 mm²
(10.2 Gbit/mm²)
Dies per Chip:2 dies @ 512 Gbit
Planes per Die:4
Decks per Die:2
Word Lines:195 per NAND String
90.3% Vertical Efficiency
Read Time (tR):56 µs
Program Time (tProg):502 µs
Block Erase Time (tBERS):15 ms
Die Read Speed:1143 MB/s
Die Write Speed:127 MB/s
Endurance:
(up to)3000 P/E Cycles
(40000 in SLC Mode)
Page Size:16 KB
Block Size:2112 Pages
Plane Size:550 Blocks