256 Mbit NOR Flash in a 24-ball BGA
The S25FL256LDPBHN030 is a 256 Mbit NOR Flash memory from Infineon's FL-L series, organized as 32M x 8 bits. It communicates over a SPI bus with Quad I/O and QPI support, clocked at up to 66 MHz.
Obsolete — plan for a replacement
Infineon lists the S25FL256LDPBHN030 as Obsolete. That means the manufacturer has stopped production and no further last-time-buy windows are open. Within the FL-L family, pin-compatible density variants may still be active — check the S25FL256L series base number for current offerings.
What the 66 MHz Quad SPI means for throughput
The SPI interface supports Quad I/O and QPI, meaning it can transfer four bits per clock cycle. At 66 MHz, the effective read throughput reaches roughly 33 MB/s in Quad mode — enough for code shadowing or data logging in an MCU-based system. The 256 Mbit density suits firmware images, configuration tables, or file systems that need non-volatile storage with fast random access.