AT24C02 I2C EEPROM Memory Storage Module Data Storage

SKU: QA7#4653

23 SAR inc. Vat.

Description

AT24C02 I2C EEPROM Memory Storage Module Data Storage

The I2C Interface EEPROM Memory Module with AT24C02 is a compact and reliable solution for expanding the storage capacity of microcontroller-based projects. While Arduino boards, such as the Arduino Uno, come with built-in EEPROM for data storage, they often have limited space—typically around 512 bytes. This may not always be sufficient for applications requiring persistent storage of settings, sensor logs, or other critical data. Additionally, EEPROM has a limited write cycle lifespan, which can lead to degradation over time.

The AT24C02 EEPROM chip provides an efficient alternative, offering 2048 bits (256 bytes) of non-volatile memory. It retains data even when the power is turned off, ensuring long-term storage of important information. Communicating via the I2C interface, it is easy to integrate with microcontrollers, and standard libraries are available for immediate use, simplifying implementation. This module is ideal for projects where 512 bytes is too little, but an SD card (with gigabytes of space) is excessive. It strikes the perfect balance for storing small amounts of essential data, such as calibration parameters, user preferences, or temporary logs, making it an excellent choice for embedded systems and IoT applications.

Technical Details

Chip Model: AT24C02
Type: I2C EEPROM Memory Module
Storage Capacity: 2Kbit (2048 bits) = 256 bytes
EEPROM Interface: I2C (Inter-Integrated Circuit)
Operating Voltage: 3.3V – 5V
Communication Protocol: I²C (Two-Wire Serial Interface)
Write Time: 5ms per byte
Data Retention: 100 years
Write Cycle Endurance: 1,000,000 write cycles

Pin Definitions:

VCC: 3.3-5V
GND: GND
SCL: Arduino analog input 5
SDA: Arduino analog input 4

Features

Imported chip, chip above the underlying code: 2ECL capacity of 2048 b (256 byte)
Onboard chip: AT24C02
Onboard I2C pull-up resistors are included for communication
All pins are leads and marked
PCB board size: 20 mm × 11.4 mm

Applications :

Data Logging – Store sensor readings and log data for IoT applications.
Configuration Storage – Save user preferences, settings, and calibration data.
Embedded Systems – Retain critical data in microcontroller-based projects.
Secure Key Storage – Store encryption keys and passwords securely.
Industrial Automation – Maintain operational parameters for automation systems.
Wearable Electronics – Save personalized settings for smart wearables.
Robotics – Store motion profiles, PID values, and last known positions.
Consumer Electronics – Retain settings in smart devices and home automation.