This post explains for the semiconductor 25Q64FW.
The Part Number is W25Q64FW.
The function of this semiconductor is 64M-Bit, NOR Flash Serial Memory.
Preview images :
Space Efficient Packaging :
1. 8-pin SOIC/VSOP 208-mil
2. 8-pad WSON 6×5-mm / 8×6-mm
3. 16-pin SOIC 300-mil (additional /RESET pin)
4. 16-ball WLBGA
5. 24-ball TFBGA 8×6-mm
The 25Q64FW (64M-bit) Serial Flash memory provides a storage solution for systems with limited
space, pins and power. The 25Q series offers flexibility and performance well beyond ordinary Serial
Flash devices. They are ideal for code shadowing to RAM, executing code directly from Dual/Quad SPI (XIP) and storing voice, text and data. The device operates on a single 1.65V to 1.95V power supply with current consumption as low as 4mA active and 1µA for power-down. All devices are offered in space-saving packages. […]