The Infineon (formerly Cypress) S25FL064P0XMFV000 is a 64 Mbit serial NOR Flash memory from the FL-P family, organized as 8M x 8 bits. The 104 MHz clock rate means a quad-read burst can deliver around 50 MB/s — enough for shadowing a small FPGA configuration or holding a boot image that the host MCU executes in place.
Obsolete — last-time-buy reality and sourcing posture
New production has ended, and the only available channel is the surplus and broker market. If you are qualifying this for a new BOM line, you need to identify a pin-compatible alternative now — the FL-P family has been superseded by newer NOR Flash families from Infineon and other vendors.
104 MHz Quad-SPI — what the clock rate means for the bus
The 104 MHz clock frequency is the maximum SPI clock the device supports. At this rate, a quad-read instruction (0xEB) reads four bits per clock, giving a raw data rate of 416 Mbps. For a host controller that supports Quad-SPI, this is fast enough to run code directly from the Flash (execute-in-place, or XiP) without a RAM shadow — provided the controller's memory-mapped Quad-SPI interface can keep up. The write cycle times are 5 µs for a page and 3 ms for a sector erase, which is typical for 65 nm NOR Flash. If your application does frequent small writes, budget for the sector-erase latency in the firmware state machine.
16-SOIC package — footprint and layout notes
The supplier device package is 16-SOIC, so the land pattern matches the JEDEC MO-119 variation for wide-body SOIC. No exposed thermal pad — the package dissipates through the leads, so keep the copper pour under the part connected to the ground plane for a modest thermal path.