Device identity and board-level fit
The S26KS256SDABHN030 is a 256 Mbit parallel NOR flash from Infineon's HyperFlash™ KS family, organized as 32M x 8 bits. The 96 ns access time and 100 MHz operating frequency define the read throughput ceiling — the parallel bus delivers sustained random-read performance that suits XIP (eXecute-In-Place) firmware execution, where the CPU fetches instructions directly from flash without shadowing to RAM. Packaged in a 24-ball FBGA (0.80 mm pitch typical for this density), the surface-mount footprint requires a controlled reflow profile per JEDEC J-STD-020. The bulk packaging means parts arrive in anti-static tubes or trays — no reel for automated pick-and-place unless re-ordered in tape-and-reel format.
The 125°C ceiling covers under-hood engine-bay applications and sealed enclosures near heat sources — the flash cell retention and read-disturb margin are characterized across this band per the datasheet's endurance and data-retention specifications. At the 1.7 V minimum supply, the access time and frequency ratings hold across the full temperature range — no derating curve is required for the parametric limits listed. This simplifies worst-case timing analysis for the memory controller interface.
Lifecycle and supply posture
For designs requiring a lower-density sibling, the S26KS128SDPBHV020 (128 Mbit, 16M x 8, same 96 ns access time, 166 MHz max frequency, -40°C to 105°C) shares the same HyperFlash™ KS family and 1.7 V supply, but operates at a higher clock ceiling and a lower temperature grade — verify the thermal and frequency requirements before substituting.