8 Mbit Boot Block FLASH for industrial parallel-bus designs
The GT28F800B3T110 is an 8 Mbit non-volatile FLASH memory organized as 512K x 16 bits, using a Boot Block architecture with a Common-User Interface (CUI) for command-based read and write control. It delivers a 110 ns access time over a 2.7 V to 3.6 V supply rail, and is specified across the -40°C to 85°C industrial temperature range. The part comes in a 48-ball VFBGA (7.7 x 9 mm body) for surface-mount assembly.
The 110 ns access time and 16-bit organization allow a 16-bit host to read without wait states.
Boot Block: protected sector for secure bootloader
The Boot Block architecture includes a hardware-lockable sector (typically the lowest address range) that prevents accidental erase or write during field operation. This is essential for systems that execute code directly from FLASH and require a fail-safe bootloader — a firmware update that corrupts the boot sector bricks the device. The CUI command set manages block locking and unlocking via software commands; verify the lock-down sequence in the datasheet before committing the production firmware.
The GT28F800B3T110 is listed as Active — no EOL notice or last-time-buy pressure for current designs.