The M29F400FT5AN6E2 is a 4 megabit (Mb) NOR Flash memory device from the M29F400FT family manufactured by Micron. It is a single-die, non-volatile memory device with an asynchronous interface which supports both the 48-pin Thin Small Outline Package (TSOP) package and the 48-lead Plastic Leaded Chip Carrier (PLCC) package. The device is organized as a 512K by 8 words with a single power supply operation at a nominal voltage of 3.0V. It has access times of 45ns for Read operations, 55ns for Program operations and 20ns for Erase operation. It is designed to provide a reliable and cost-effective storage solution with robust features such as write protection, hardware and software reset capability, and sector protection. The device offers a wide range of features such as a set of unique ISA bus cycle and commands, a flexible four-wire interface for accessing and reading data, and support for status, write control, and erase/write cycle completion.