Low-voltage operation  VCC = 1.7V to 5.5V  Internally organized as 128 x 8 (1K) or 256 x 8 (2K)  I 2 C compatible (2-wire) serial interface  Schmitt Trigger, filtered inputs for noise suppression  Bidirectional data transfer protocol  400kHz (1.7V) and 1MHz (2.5V, 2.7V, 5.0V) compatibility  Write Protect pin for hardware data protection 8-byte Page Write mode  Partial page writes allowed  Self-timed write cycle (5ms max)  High-reliability  Endurance: 1,000,000 write cycles  Data retention: 100 years  Green package options (Pb/Halide-free/RoHS-compliant)  8-lead PDIP, 8-lead JEDEC SOIC, 8-lead TSSOP, 8-pad UDFN, 5-lead SOT23, and 8-ball VFBGA  Die sale options: wafer form and tape and reel available