Description
The AT24C01B/02B/04B/08B provides 1024/2048/4096/8192 bits of serial electrically erasable and programmable read-only memory (EEPROM) organized as 128/256/512/1024 words of 8 bits each. The device is optimized for use in many automotive applications where low-power and low-voltage operation are essential. The AT24C01B/02B/04B/08B is available in space-saving 8-lead JEDEC SOIC and 8-lead TSSOP packages and is accessed via a two-wire serial interface. In addition, the entire family is available in 2.5V (2.5V to 5.5V) versions.

Features
• Medium-voltage and Standard-voltage Operation
    – 2.5 (VCC= 2.5V to 5.5V)
• Automotive Temperature Range –40°C to 125°C
• Internally Organized 128 x 8 (1K), 256 x 8 (2K), 512 x 8 (4K) or 1024 x 8 (8K)
• Two-wire Serial Interface
• Schmitt Trigger, Filtered Inputs for Noise Suppression
• Bidirectional Data Transfer Protocol
• 400 kHz (2.5V) Compatibility
• Write Protect Pin for Hardware Data Protection
• 8-byte Page (1K, 2K) or 16-byte Page (4K, 8K) Write Modes
• Partial Page Writes are Allowed
• Self-timed Write Cycle (5 ms max)
• High-reliability
    – Endurance: 1 Million Write Cycles
    – Data Retention: 100 Years
• 8-lead JEDEC SOIC and 8-lead TSSOP Packages