The S25FL128SAGMFB011 is a SPI Flash memory chip from Infineon Technologies. This device has a capacity of 128 Megabits (16 Megabytes) and comes in packages of 8 pin SOIC, 8 pin WSON, and 16 pin SOIC. It operates at speeds of up to 104Mbit/s and offers a wide temperature range (-40°C to +125°C). The operating voltage range is 2.7V-3.6V. The S25FL128SAGMFB011 supports an industry-standard Serial Peripheral Interface (SPI) that is compatible with the SPI and single-wire-SPI interface protocols. It features advanced features such as read, write and erase durability, write protection, and advanced block lock features. It is designed for use in various applications such as industrial automation, medical devices, automotive, wearable technology, etc.