The Atmel 512-Kbit 2-wire Serial EEPROM with three address inputs, supports up to eight devices on a single 2-wire bus. Memory organized as 65,536 words x 8 bits. Optimized for industrial and commercial applications where low-power and low-voltage operations are essential. The EEPROM is available in a variety of space-saving packaging options and operating voltage versions. M voltage range devices operate from 1.7V to 3.6V. While, D voltage range devices operate from 2.5V to 5.5V.