AT25SF321 memory equivalent, spi serial flash memory.
* Single 2.5V - 3.6V Supply
* Serial Peripheral Interface (SPI) Compatible
* Supports SPI Modes 0 and 3
* Supports Dual and Quad Output Read
* 104MHz .
* Uniform 4-Kbyte Block Erase
* Uniform 32-Kbyte Block Erase
* Uniform 64-Kbyte Block Erase
* Full Chip .
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