The 79LV0832 from Data Device Corporation is a Space Qualified Memory with Storage Capacity 256 Mb, Read Access Time 200 to 250 ns, Write Access Time 15 ms, Radiation Dose 10 krad, 25 krad, 40 krad, 60 krad, Mass 38 gms, 45 gms. More details for 79LV0832 can be seen below.