64 Mbit SPI NOR Flash for automotive and industrial storage
The Infineon S25FL164K0XMFBQ10 is a 64 Mbit SPI NOR Flash memory from the FL1-K series, organized as 8M × 8 bits. It communicates over a Quad I/O SPI interface at up to 108 MHz, delivering read throughput suitable for code shadowing, firmware storage, and data logging in embedded systems.
Buyers should evaluate a pin-compatible alternative within the FL1-K family for new designs or long-term production support.
The 108 MHz clock rate with Quad I/O (four data lines) gives a theoretical peak read throughput of 54 MB/s in fast-read mode. For a 64 Mbit device, that means the entire array can be read in roughly 150 ms. In practice, the 3 ms page write cycle (word or page) sets the floor for programming throughput — about 330 bytes per page write assuming a 256-byte page. The SPI interface keeps pin count low (8-SOIC package), which simplifies PCB routing and frees GPIOs on the host MCU.
Package and footprint — 8-SOIC with 5.30 mm width
No exposed thermal pad; power dissipation is modest for a NOR Flash (typical active current in the low tens of mA).