The S29GL256P11FFIV10 is a 256 Mbit, 3.0 V page-mode Flash memory using 90 nm MirrorBit technology, featuring uniform 128 Kbyte sectors and VersatileIO for I/O voltages from 1.65 V to VCC. It supports single word and 32-word buffer programming for fast writes, advanced sector protection, and 100,000 erase cycles per sector.