The S29GL256S90GHI020 is a 256 Mb, 3.0 V parallel NOR flash memory using 65 nm MIRRORBIT™ Eclipse technology. It features a 16-bit data bus, 90 ns random access, 15 ns page access, and a 512-byte write buffer for fast programming. With uniform 128 KB sectors, robust ECC, advanced sector protection, and up to 100,000 program/erase cycles, it ensures data integrity and reliability.