MT28F004B3 MT28F004B3VG-8 B MT28F004B3VG-8 B TR MT28F004B3VG-8 BET MT28F004B3VG-8 BET TR MT28F004B3VG-8 T MT28F004B3VG-8 T TR MT28F004B3VG-8 TET MT28F004B3VG-8 TET TR MT28F004B3VG-8B:F