256Mb SEMPER™ Nano 1.8V QSPI Flash in known good wafer format S25FS256TDAWEC119 is a 256 Mbit NOR flash in the FS-T family, built on 45-nm MIRRORBIT technology and accessed through Quad SPI. It operates from 1.7 V to 2.0 V over 0°C to 70°C and supports 80 MHz SDR reads for up to 40 MByte/s bandwidth. Built-in ECC provides 100% array protection with error reporting, and RD/BY# plus hardware reset support robust embedded boot and code storage.