64 Mbit SPI Quad I/O NOR Flash — now in the surplus channel
The Cypress S25FL164K0XMFV011 is a 64 Mbit SPI Quad I/O NOR Flash memory from the FL1-K series, organized as 8M x 8. It clocks up to 108 MHz over the SPI bus with Quad I/O support, giving a read throughput that keeps an MCU fed for execute-in-place firmware without waiting on the memory.
No further factory orders or last-time-buy windows are open. For a new design or a long-running production line, qualifying a current-production pin-compatible NOR Flash is the prudent move before the remaining surplus dries up.
The 108 MHz clock rate with Quad I/O means the part can deliver sustained read throughput well above what a standard single-bit SPI at lower frequencies manages. For a firmware image that shadows into RAM at boot, or an OTA staging area that needs to fill a buffer quickly, this part keeps the CPU from stalling on flash reads. The 3 ms page write cycle is typical for this NOR generation — adequate for configuration storage and parameter updates, not a high-speed logging target.
Package and temperature grade — board-fit check
The part comes in an 8-SOIC wide-body package (0.209" body width, 5.30 mm) — surface-mount, 8-pin.