The Macronix MX29F800CBTI is an 8-Mbit (1M x 8-bit or 512K x 16-bit) parallel NOR flash memory chip with a bottom boot sector architecture. Operating on a single 5V supply, this non-volatile memory provides a fast 70ns access time. Housed in a 48-pin TSOP package, it's designed for industrial applications, functioning reliably in temperatures from -40°C to +85°C. Suffixes like "-70G" and "-70G-TR" specify the access time, temperature range, and packaging type.