K24C256

Serial EEPROM K24C128 / K24C256 Spring 2008 K24C128/K24C256 Two-Wire Serial EEPROM 128K (16,384 X 8)/256K (32,768 X 8) Features Low-voltage Operation - 1.8 (VCC = 1.8V to 5.5V) Operating Ambient Temperature: -40°C to +85°C Internally Organized: - 16,384 X 8 (128K) - 32,768 X 8 (256K) Two-wire Serial Interface Schmitt Trigger, Filtered Inputs for Noise Suppression Bidirectional Data Transfer Protocol 400 kHz (1.8V, 2.7V, 5V) Compatibility Write Protect Pin for Hardware Data Protection 64-byte Page (128K/256K) Write Modes Partial Page Writes Allowed Self-timed Write Cycle (5 ms max) High-reliability - Endurance: 1 Million Write Cycles - Data Retention: 100 Years 8-lead PDIP, 8-lead JEDEC SOIC and 8-lead TSSOP Packages General Description The K24C128/K24C256 provides 131,072/262,144 bits of serial electrically erasable and programmable read-only memory (EEPROM) organized as16,384/32,768 words of 8 bits each. The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operation are essential. The K24C128/K24C256 is available in space-saving 8-lead PDIP, 8-lead JEDEC SOIC, and 8-lead TSSOP packages and is accessed via a Two-wire serial interface. In addition, the K24C128/K24C256 is available in 1.8V (1.8V to 5.5V) version. Pin Configuration 8-lead PDIP A0 A1 NC GND 1 2 3 4 8 VCC 7 WP 6 SCL 5 SDA 8-lead TSSOP A0 A1 NC GND 1 2 3 4 8 VCC 7 WP 6 SCL 5 SDA 8-lead SOI C A0 A1 NC GND 1 2 3 4 8 VCC 7 WP 6 SCL ...