The S25FL256SAGMFM003 is a 256 Mb automotive-grade flash memory with MIRRORBIT™ technology and Eclipse architecture. It supports SPI Multi-I/O with single, dual, quad, and DDR modes up to 133 MHz. Operating from 2.7 V to 3.6 V core and 1.65 V to 3.6 V I/O, it offers 100,000 cycles endurance, 20-year data retention, and security features including block protection and OTP.