AT25320B-XHL-B Memory Size, Microchip AT25320B-XHL-B, 32kB EEPROM Chip 8-Pin SOP Serial-SPI

The Microchip serial electrically erasable programmable read only memory (EEPROM) organized as 4,096/8,192 words of 8 bits each. The device is optimized for use in many industrial and commercial applications where low power and low-voltage operation are essential. It is enabled through the Chip Select pin (CS) and accessed via a 3-wire interface consisting of Serial Data Input (SI), Serial Data Output (SO), and Serial Clock (SCK). All programming cycles are completely self-timed, and no separate erase cycle is required before write.
Serial Peripheral Interface (SPI) compatibleSupports SPI modes 0 (0,0) and 3 (1,1)Datasheet describes mode 0 operationLow-voltage and standard-voltage operation20 MHz clock rate32-byte page modeBlock write protectionProtect 1/4, 1/2, or entire arrayWrite protect WP pin and write disable instructions for both hardware and software data protectionSelf-timed write cycle 5 ms maximumHigh reliabilityEndurance 1,000,000 write cyclesData retention 100 years