AT25640B-XHL-B Memory Size, Microchip AT25640B-XHL-B, 64kB EEPROM Chip 8-Pin SOP Serial-SPI

The Microchip 32,768-/65,536-bits of 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 available in space saving 8-lead TSSOP package.
Serial peripheral interface (SPI) compatibleSupports SPI modes 0 (0,0) and 3 (1,1)32-byte page modeBlock write protection̶Protect 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 reliability̶Endurance 1,000,000 write cycles̶Data retention 100 years