The 3DFS256M04VS2801 from 3D Plus is a Space Qualified Memory with Storage Capacity 256 Mb, Bit Size 256 Mbits, Radiation Dose 40 krad(Si), Current 10 to 150 mA, Operating Temperature -40 to 85 Degree C. Tags: Surface Mount. More details for 3DFS256M04VS2801 can be seen below.