AT24C256 I2C EEPROM Memory Module

The AT24C256 I2C EEPROM Memory Module is a non-volatile serial memory module that provides 256 Kbit (32KB) of storage for embedded applications. Using the industry-standard I2C (Two-Wire) interface, it allows microcontrollers such as Arduino, ESP32, STM32, Raspberry Pi Pico, and other development boards to store configuration settings, calibration data, sensor logs, user preferences, and other information that must be retained even after power is removed. Its compact design, low power consumption, and reliable data retention make it an excellent choice for IoT, robotics, automation, and DIY electronics projects.

Features

• 256 Kbit (32KB) non-volatile EEPROM storage
• Standard I2C (Two-Wire) communication interface
• Operating voltage: 2.7V to 5.5V
• Configurable I2C device address via A0, A1, and A2 pins
• Write Protect (WP) pin for preventing accidental writes
• 64-byte page write capability for faster data storage
• Low power consumption with long data retention
• Compatible with 3.3V and 5V microcontroller systems
• Compact PCB module with easy-to-use pin headers