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