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The SPI family consists of 19 devices with memory density ranging from 1 kbits to 256 kbits. Speeds are 10 MHz for all devices except the 128 kbit and 256 kbit devices that operate at 5 MHz. Devices with standard 2-bit block protection, enhanced 2-bit block protection with software write protection and versatile 3-bit block protection with software write protection are offered. All four SPI clock/phase modes (00, 01, 10, and 11) are supported through factory programming options.

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