CAT24FC66

 Fast mode I2C bus compatible*
 Max clock frequency:
    - 400KHz for VCC=2.5V to 5.5V
 Schmitt trigger filtered inputs fornoise suppression
 Low power CMOS technology
 64-byte page write buffer
 Self-timed write cycle with auto-clear
 Industrial and automotive temperature ranges
 5 ms max write cycle time
 Write protect feature
    Bottom 1/4 array protected when WP at V_IH(CAT24FC65)
    Top 1/4 array protected when WP at V_IH(CAT24FC66)
 1,000,000 program/erase cycles
 100 year data retention
 8-pin DIP, 8-pin SOIC (JEDEC), 8-pin SOIC(EIAJ), 8-pin TSSOP and TDFN packages

The CAT24FC65/66 is a 64k-bit Serial CMOS EEPROMinternally organized as 8,192 words of 8 bits each.Catalyst's advanced CMOS technology substantiallyreduces device power requirements.
The CAT24FC65/66 features a 64-byte page writebuffer. The device operates via the I2C bus serialinterface and is available in 8-pin DIP, SOIC, TSSOPand TDFN packages.