This post explains for the semiconductor 25Q64FV, W25Q64FV.
The Part Number is 25Q64FV.
The function of this semiconductor is 64M-Bit Serial Flash Memory.
Manufacturers : Winbond
The 25Q64FV (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 2.7V to 3.6V power supply with current consumption as low as 4mA active and 1µA for power-down. All devices are offered in space-saving packages.
Highest Performance Serial Flash
1. 104MHz Standard/Dual/Quad SPI clocks
2. 208/416MHz equivalent Dual/Quad SPI
3. 50MB/S continuous data transfer rate
4. More than 100,000 erase/program cycles
5. More than 20-year data retention
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