BUY MBM29F400TC-90-Y https://www.utsource.net/itm/p/9771791.html

Description: 4Mbit (512K x 8-bit) CMOS Flash Memory Features: - Low voltage operation: VCC = 2.7 to 3.6V - High speed operation: 90ns access time - Low power consumption - Program/erase suspend/resume - Program/erase endurance: 10K cycles - Data retention: 10 years - Package: SOP Applications: - Automotive electronics - Industrial control - Data storage - Instrumentation - Telecommunications (For reference only)