The AT24C256 provides 262,144 bits of serial electrically erasable and programmable read only memory (EEPROM) organized as 32,768 words of 8 bits each. The device’s cascadable feature allows up to 4 devices to share a common 2-wire bus. The device is optimized for use in many industrial and commercial applications where low power and low voltage operation are essential. The devices are available in space-saving 8-pin JEDEC PDIP, 8-pin EIAJ, 8-pin JEDEC SOIC, 14-pin TSSOP, and 8-pin LAP packages. In addition, the entire family is available in 5.0V (4.5V to 5.5V), 2.7V (2.7V to 5.5V) and 1.8V (1.8V to 3.6V) versions.
Low Voltage and Standard Voltage Operation
– 5.0 (VCC = 4.5V to 5.5V) – 2.7 (VCC = 2.7V to 5.5V) – 1.8 (VCC = 1.8V to 3.6V)
Internally Organized 32,768 x 8
2-Wire Serial Interface
Schmitt Trigger, Filtered Inputs for Noise Suppression