The 3D2D2G16UB2684 from 3D Plus is a Space Qualified Memory with Storage Capacity 128 Mb, Bit Size 128 Mbit 16-Bit, 64 Mbit 8-Bit, Radiation Dose 80 krad (Si) (Read Mode), 25 krad (Si) (Write Mode), Mass 4 gms, Voltage 1.7 to 1.9 V. More details for 3D2D2G16UB2684 can be seen below.