Microchip 24FC02-I/MS, 2kbit EEPROM Memory Chip, 3500ns 8-Pin MSOP Serial-2 Wire

Single supply with operation down to 1.7V
Low-power CMOS technology - Read current 1 mA max, Standby current 1 mA max (I-temp.)
2-wire serial interface, I2C™ Compatible
100 KHz, 400 KHz, and 1 MHz compatibility
Schmitt Trigger inputs for noise suppression
Output slope control to eliminate ground bounce
Self-Timed Erase and Write Cycles (5 ms max)
Hardware Write-Protect Pin
More than 1 million erase/write cycles
Data retention > 200 years
Extended temperature ranges available
Factory Programming Available