AT24C256B
Overview
The AT24C256B provides 262,144 bits of serial electrically erasable and programmable read-only memory (EEPROM) organized as 32,768 words of 8 bits each. The device’s cascadable feature allows up to eight devices to share a common two-wire bus.
- Low-voltage and Standard-voltage Operation - 1.8 (VCC = 1.8V to 5.5V)
- Internally Organized as 32,768 x 8
- Two-wire Serial Interface
- Schmitt Trigger, Filtered Inputs for Noise Suppression
- Bidirectional Data Transfer Protocol
- 1 MHz (5.0V, 2.7V, 2.5V), and 400 kHz (1.8V) Compatibility
- Write Protect Pin for Hardware and Software Data Protection
- 64-byte Page Write Mode (Partial Page Writes Allowed)
- Self-timed Write Cycle (5 ms Max)
- High Reliability - Endurance: One Million Write Cycles - Data Retention: 40 Years
