AT24C256 I2C Interface EEPROM Memory Module
The AT24C256 I2C Interface EEPROM Memory Module is a compact non-volatile memory expansion board designed for microcontroller and embedded system projects. It features the AT24C256 256Kb (32KB) EEPROM IC, allowing data to be permanently stored even after power is removed.
Using the standard I2C communication protocol, this module works seamlessly with Arduino, ESP32, ESP8266, Raspberry Pi, STM32, PIC, AVR, 8051, and many other development boards. It is perfect for storing sensor calibration values, user settings, passwords, device IDs, configuration parameters, logging data, and IoT application records.
For Bangladeshi students, electronics hobbyists, robotics enthusiasts, and professional engineers, the AT24C256 EEPROM module is an affordable and reliable memory solution for embedded systems and automation projects.
Need additional memory for your embedded project? The AT24C256 EEPROM Memory Module offers a simple and reliable solution. Unlike RAM, EEPROM retains stored information even when power is disconnected, making it ideal for long-term data storage.
The module communicates over the I2C bus, requiring only two signal wires (SDA and SCL), helping reduce GPIO usage. Multiple modules can share the same I2C bus through configurable device addresses, making it suitable for larger embedded systems.
Whether you're building a smart home controller, weather station, industrial automation system, robotics project, or IoT device, the AT24C256 provides dependable storage for critical configuration and runtime data.
The onboard pull-up resistors and standard pin layout make it easy to connect and program using popular development environments such as the Arduino IDE, PlatformIO, MicroPython, and Raspberry Pi Python libraries.
Features:
- Genuine AT24C256 Serial EEPROM IC
- 256Kb (32KB) non-volatile memory
- Standard I2C communication interface
- Stores data even after power loss
- Fast read and write operations
- Low power consumption
- Supports multiple devices on the same I2C bus
- Compatible with 3.3V and 5V systems (module dependent)
- Easy integration with Arduino and Raspberry Pi
- Compact PCB design
- Ideal for IoT and embedded applications
- Long data retention
- High write endurance
- Perfect for educational electronics projects
Specifications:
| Specification | Details |
|---|---|
| IC Model | AT24C256 |
| Memory Capacity | 256Kb (32KB) |
| Memory Type | EEPROM |
| Interface | I2C |
| Communication Speed | Up to 400kHz (Fast Mode) |
| Supply Voltage | 2.5V–5.5V (IC), module compatibility may vary |
| Data Retention | Up to 100 Years (Typical) |
| Write Endurance | 1 Million Write Cycles (Typical) |
| Device Address | Configurable via A0, A1, A2 Pins |
| Operating Temperature | -40°C to +85°C |
| Board Size | Compact Module |
| Mounting | PCB Module |
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