The GigaDevice GD25B256D 256Mb Serial Flash IC is a high-performance memory chip designed for storing BIOS and firmware code in modern laptops, desktops, and embedded systems. It supports the standard SPI interface as well as Dual and Quad SPI modes, offering fast data throughput — up to 208 Mbit/s for Dual I/O and 416 Mbit/s for Quad I/O operation. This chip is available in compact packages including SOP16 (300 mil), WSON8 (8×6 mm), and TFBGA24 (8×6 mm, 5×5 ball array), providing excellent flexibility for different board layouts.
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