It communicates over a SPI interface with Quad I/O and QPI support, clocking up to 108 MHz. The part is housed in a 24-ball BGA package measuring 6 x 8 mm, rated for the industrial temperature range of -40°C to 105°C. This is a code-storage NOR Flash — the kind you see on a board that needs fast, random-access read for execute-in-place firmware, not the sequential streaming you get from NAND. Typical applications include industrial controllers, networking gear, and any embedded system where the MCU or FPGA boots directly from the Flash and the 64 Mbit density fits the firmware image size.
108 MHz clock and Quad I/O — what the interface means for throughput
The 108 MHz clock rate is the standard high-speed ceiling for this generation of NOR Flash. With Quad I/O enabled, the part shifts four bits per clock cycle.