Parallel NOR Flash for firmware storage — 70 ns read, 16 Mbit density
The Infineon S29AL016J70TFI023 is a 16 Mbit parallel NOR Flash memory from the AL-J series, organized as 2M x 8 or 1M x 16.
The 70 ns access time is the ceiling for random read from address to data-out. The write cycle time (word or page) also runs 70 ns.
Dual organization — byte or word mode without glue
The memory array can be addressed as 2M x 8-bit (byte mode) or 1M x 16-bit (word mode), selected by the BYTE# pin. This lets a single BOM line serve both 8-bit and 16-bit bus designs — the same part number covers both configurations, reducing qualification overhead.