AT24C256 EEPROM Non-Volatile IIC I2C Board – AT24C Series Module

AT24C256 EEPROM Non-Volatile Memory Board – IIC / I2C Two-Wire Bus

The AT24C256 EEPROM Non-Volatile Board is a compact, ready-to-use memory module designed for electronics prototyping, embedded systems, and DIY microcontroller projects. Featuring an onboard 8P DIP chip socket, it supports the full AT24C series of EEPROM chips — from AT24C01 all the way up to AT24C256 — giving you flexible, non-volatile data storage over a simple IIC (I2C) two-wire interface.

Key Features

• Universal AT24C Series Compatibility: Onboard 8P chip holder accepts AT24C01, AT24C02, AT24C04, AT24C08, AT24C16, AT24C32, AT24C64, AT24C128, and AT24C256 chips.
• IIC / I2C Two-Wire Interface: Simple SDA/SCL communication makes integration with Arduino, Raspberry Pi, STM32, and other microcontrollers straightforward.
• Pin-Selectable Power Supply: Onboard power indicator LED confirms the board is powered and ready.
• Non-Volatile Storage: Retains stored data even when power is removed — ideal for configuration data, sensor logs, and user settings.
• Compact PCB Design: Small footprint fits neatly into breadboards and custom enclosures.
• Write-Protect Support: Hardware write-protect pin helps safeguard stored data from accidental overwrites.
• 8 Address Options: Configurable I2C address via onboard address pins allows multiple modules on the same bus.

Specifications

• Compatible Chips: AT24C01 to AT24C256 (8P DIP)
• Interface: IIC / I2C (Two-Wire Bus)
• Operating Voltage: 3.3V / 5V
• Onboard LED: Power indicator
• I2C Address: Configurable via A0, A1, A2 pins

What's in the Box

• 1 × AT24C256 EEPROM Non-Volatile Board (IIC Two-Wire Bus)

Perfect For

• Arduino and Raspberry Pi projects requiring persistent data storage
• Embedded systems development and prototyping
• Storing configuration parameters, calibration data, or user settings
• Electronics hobbyists and students learning I2C communication

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Frequently Asked Questions

Q: Which AT24C EEPROM chips are compatible with this board?

A: This board is compatible with the full AT24C series of 8P DIP EEPROM chips, including AT24C01, AT24C02, AT24C04, AT24C08, AT24C16, AT24C32, AT24C64, AT24C128, and AT24C256. Simply insert your chosen chip into the onboard 8P socket.

Q: What microcontrollers can I use with this EEPROM IIC board?

A: The board uses the standard IIC (I2C) two-wire protocol (SDA + SCL), making it compatible with virtually any microcontroller that supports I2C — including Arduino (Uno, Nano, Mega), Raspberry Pi, STM32, ESP8266, and ESP32.

Q: What voltage does this EEPROM board operate at?

A: The board supports both 3.3V and 5V power supplies, making it versatile for use with both 3.3V systems (like Raspberry Pi) and 5V systems (like Arduino Uno). The onboard power indicator LED will light up to confirm correct power delivery.

Q: Can I use multiple EEPROM boards on the same I2C bus?

A: Yes. The board features configurable address pins (A0, A1, A2) that allow you to set up to 8 unique I2C addresses, enabling multiple boards to share the same two-wire bus without conflicts.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.