| Pin No | Pin Name | Description |
| 1 | A0 | User Configurable Chip Select |
| 2 | A1 | User Configurable Chip Select |
| 3 | NC | No Connection |
| 4 | GND | Ground Pin |
| 5 | SDA | Serial Data Pin |
| 6 | SCL | Serial Clock Pin |
| 7 | WP | Write Protect Pin |
| 8 | VCC | Power Supply Pin |
Features
- Low-Voltage and Standard-Voltage Operation
– 2.7 (VCC = 2.7V to 5.5V)
– 1.8 (VCC = 1.8V to 5.5V)
- Low-Power Devices (ISB = 2μA at 5.5V) Available
- Internally Organized 16,384 x 8 and 32,768 x 8
- 2-Wire Serial Interface
- Schmitt Trigger, Filtered Inputs for Noise Suppression
- Bidirectional Data Transfer Protocol
- 1 MHz (5V), 400 kHz (2.7V, 2.5V) and 100 kHz (1.8V) Compatibility
- Write Protect Pin for Hardware Data Protection
- 64-byte Page Write Mode (Partial Page Writes Allowed)
- Self-Timed Write Cycle (10 ms max)
- High Reliability
– Endurance: 1 Million Write Cycles
– Data Retention: 40Years
- Automotive Grade and Extended Temperature Devices Available
- 8-Pin PDIP Package
AT24C256 EEPROM Applications
- Data Logging
- Audio devices
- Remote storage devices
- Data analytics
- Storage devices
- Used where Flash memory of MCU is less
Datasheet : Download
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