The S29GL256S90DHA023 is a 256 Mb parallel NOR flash memory based on 65 nm MIRRORBIT™ Eclipse technology, featuring a 16-bit data bus and 90 ns random access time. Operating from 2.7 V to 3.6 V with versatile I/O (1.65 V to VCC), it offers a 512-byte programming buffer, robust sector protection, and internal ECC for single-bit error correction.