At24c512 Serial Eeprom 512k

The AT24C512 IC is 512K EEPROM with cascadable feature that allows up to four devices to share a common two-wire bus. It is optimized to be used in various industrial and commercial applications where low power and low-voltage operation are required.
AT24C512 EEPROM IC Features:
Low-voltage and Standard-voltage Operation – 2.7 (VCC = 2.7V to 5.5V) – 1.8 (VCC = 1.8V to 3.6V)
Internally Organized 65,536 x 8
Two-wire Serial Interface
Schmitt Triggers, Filtered Inputs for Noise Suppression
Bidirectional Data Transfer Protocol
1 MHz (5V), 400 kHz (2.7V) and 100 kHz (1.8V) Compatibility
Write Protect Pin for Hardware and Software Data Protection
128-byte Page Write Mode (Partial Page Writes Allowed)
Self-timed Write Cycle (5ms Max)
High Reliability – Endurance: 100,000 Write Cycles – Data Retention: 40 Years