The S28HS256TGZBHM813 is a 256 Mbit SEMPER™ NOR flash (HS-T) with octal interface (8S-8S-8S, 8D-8D-8D) for automotive code storage and fast boot. It operates from 1.7 V to 2.0 V over -40 to 125C and supports 166 MHz SDR and 200 MHz DDR, delivering up to 400 MByte/s bandwidth. ISO 26262-compliant features include ECC (SECDED), interface CRC, data integrity CRC, SafeBoot, and AutoBoot.