Parallel NOR flash for code storage — 256 Mbit, 100 ns access
The Cypress (Infineon) S29GL256S10FHIV10 is a 256 Mbit parallel NOR flash memory from the GL-S series, organized as 16M x 16 bits.
100 ns access — timing margin on a 16-bit bus
The 100 ns access time sets the minimum wait-state insertion on a 16-bit parallel bus. The write cycle time for word and page operations is 60 ns.
A design using a 1.8 V SoC can drop this flash directly onto the same rail, while a legacy 3.3 V system also works without a regulator change. The wide range also helps during power-up sequencing, as the memory stays within spec even if the rail ramps slowly from 1.65 V.
64-ball FBGA — footprint and assembly
Housed in a 64-ball FBGA measuring 13x11 mm, this part uses a fine-pitch BGA that requires solder-paste stencil design matched to the ball diameter and pitch. The package is surface-mount only. X-ray inspection after assembly is standard to confirm ball wetting and voiding.
Lifecycle — active, no end-of-life pressure
ROHS3 compliant per the evidence.