64 Mbit parallel NOR flash for code storage
The S29GL064N90FFIS20 is a 64 Mbit parallel NOR flash from the GL-N series, organized as 8M x 8 or 4M x 16. The 90 ns access time means the CPU can fetch instructions directly from the flash without wait states at moderate clock speeds — a fit for legacy MCU and DSP designs that expect a parallel memory bus.
Supply voltage and temperature grade
Runs on a 2.7 V supply, which matches the core voltage of many 2.5 V to 3.3 V systems without an extra regulator.
The tray packaging suits pick-and-place lines that feed from JEDEC trays rather than tape-and-reel.