AS27C256-70JM AS27C256-90ECAM AS27C256-90JM AS27C512-20ECAM AS27C512-25ECAM AS-28.224-18-F-2020-NS1 AS-28.224-18-F-SMD-T AS-28.63636-30-F-EXT-SMD-T AS-28.63636MAHE-B AS280