Description:
If you need to do some data storage in Arduino, using the EEPROM is probably the simplest practice. In reality, Arduino’s ATmega chip itself has a certain EEPROM memory, but it is limited.
This is an external EEPROM memory module that uses the I2C bus line to connect with Arduino. It comes with a pluggable chip, making it easy to expand capacity—simply insert a larger EEPROM chip to increase storage.
The AT24C256 I2C Interface EEPROM Memory Module is based on EEPROM chips of the FT24C256A series with a 256K bit capacity (32k bytes). The module communicates with Arduino through the I2C interface and works well with Arduino-Sensor-Shield-V4.0 and the Arduino-I2C-COM-Cable.
With this Ethernet Shield, your Arduino board can connect to the internet. It can function as a server or client and can be directly plugged onto the puzzle board with no soldering required.
- Controller: W5100
- Latest version of Ethernet Shield
- Based on Wiznet W5100 Ethernet Chip, giving an easy way to get your Arduino online
- Directly supported by Arduino’s official Ethernet Library
- Adds a micro-SD card slot for storing files to serve over the network
- Compatible with Arduino Duemilanove (168 or 328), Uno, and Mega (1280/2560), accessible using the SD library
- Wiznet W5100 provides a network (IP) stack capable of TCP and UDP
- Supports up to four simultaneous socket connections
- Use the Ethernet library to write sketches connecting to the internet via the shield
Features:
- Chipset: FT24C256A
- 8P chip seat for installing the FT24C256A chip
- Pin-powered on-board power indicator
- I2C communications require pull-up resistor
- All pins are leads and marked with address input and direct write-protect pin jumper settings
Specifications:
| Chipset | FT24C256A |
|---|---|
| Maximum Operating Voltage (V) | 6.25 |
| Output Current (mA) | 5 |
| Operating Temperature (°C) | -55 ~ +125 |
| Storage Temperature (°C) | -65 ~ +150 |
Package Includes:
- 1 x AT24C256 I2C Interface EEPROM Memory Module.
Technical Specifications
| Model | AT24C256 |
|---|---|
| Interface / Protocol | I2C |
| SKU | AI0646 |
| Weight | 0.01 kg |
| Availability | In Stock |
Applications & Use Cases
The AT24C256 I2C Interface EEPROM Memory Module is a versatile usb interface module used across a wide range of applications including serial communication, industrial automation, data logging, PLC interfacing, and IoT gateway.
Common use cases:
- Converting USB to RS485 for industrial equipment
- Building a data logger for factory sensors
- Debugging embedded systems via UART
This product is ideal for embedded system developers and industrial automation engineers.
Technical Tip: Industrial-grade modules with isolation protect against ground loops and voltage spikes in noisy environments.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components

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Ayush Sharma (verified owner) –
Good AT24C256 I2C Interface EEPROM Memory. Works as described. Packaging could be improved slightly.
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Jai Rathore –
Very satisfied with this AT24C256 I2C Interface EEPROM Memory. My project is working perfectly now.
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Excellent AT24C256 I2C Interface EEPROM Memory! Works perfectly as described. Very happy with this purchase.
Amit Luthra (verified owner) –
Perfect AT24C256 I2C Interface EEPROM Memory. Works as expected. Packaging was secure and product arrived safely.
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Pretty good AT24C256 I2C Interface EEPROM Memory. Quality is reasonable for the price point.
Subramanian . (verified owner) –
Kartik Grewal –
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Chetan Mishra –
Good AT24C256 I2C Interface EEPROM Memory. Using it in my project. Minor issues but overall happy.
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Love this AT24C256 I2C Interface EEPROM Memory. Build quality is excellent. Will order more from Zbotic.
Uday Tiwari –
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