64 Mbit NOR Flash for code storage and data logging
The S25FL164K0XMFV001 is a 64 Mbit (8M x 8) NOR Flash memory from Infineon's FL1-K series, organized as 8M x 8 bits. The supply voltage range of 2.7V to 3.6V and industrial temperature grade of -40°C to 105°C make it suitable for outdoor telecom, factory automation, and under-hood automotive modules where the ambient temperature exceeds the commercial 85°C ceiling.
Obsolete — plan a replacement or source through distribution
Infineon lists the S25FL164K0XMFV001 as Obsolete, meaning the manufacturer no longer produces this exact order code. Design teams with active BOM lines should evaluate a pin-compatible successor or source remaining inventory through independent distribution. The base product number S25FL164 may have active variants in the same family — confirm the package (16-SOIC) and temperature grade match before substituting. No official successor is recorded; a cross-reference to a current Infineon or third-party NOR Flash with the same footprint and interface is recommended.
Package and interface — 16-SOIC with Quad I/O
Housed in a 16-SOIC (0.295-inch, 7.50 mm width) package with surface-mount termination, this part occupies a standard SOIC footprint that is widely supported by pick-and-place equipment. The 16-SOIC narrow-body variant is common for serial NOR Flash; confirm the board land pattern matches the supplier device package dimensions. The SPI Quad I/O interface uses four data lines (IO0–IO3) plus chip select, clock, and write-protect pins, enabling faster program and read operations than standard SPI. The 108 MHz clock yields a theoretical read throughput of 54 MB/s in Quad I/O mode, which is adequate for code shadowing from a slower boot device.