The S25FL127SABNFB103 is a 128 Mb SPI multi-I/O flash memory using MIRRORBIT™ technology and Eclipse architecture for enhanced program and erase performance. It supports normal, fast, dual, and quad read modes, with quad read speeds up to 54 MBps at 108 MHz. Operating from 2.7 V to 3.6 V and -40°C to +125°C, it offers 100,000 program-erase cycles per sector and 20-year data retention. Security features include a 1024-byte OTP region. Ideal for embedded storage.