AT24C02D-XHM-T:Configuration, function, application field

The AT24C02D-XHM-T is a specific product identifier for a 2-kilobit (256 x 8) serial EEPROM (Electrically Erasable Programmable Read-Only Memory) manufactured by Microchip Technology. Below is an overview of its configuration, function, and potential application fields:



  • Memory Size: The AT24C02D-XHM-T has a memory size of 2 kilobits, organized as 256 bytes with 8 bits per byte.
  • Interface: It features a serial I2C (Inter-Integrated Circuit) interface, allowing for easy communication with other devices.
  • Voltage Levels: Operates within specific voltage levels, typically compatible with standard digital I/O levels.
  • DataSheet AT24C02D-XHM-T PDF


  • Non-Volatile Memory: The EEPROM provides non-volatile memory storage, allowing data retention even when power is removed.
  • Read and Write Operations: Supports both read and write operations, allowing for data to be stored and retrieved as needed.
  • I2C Interface: Utilizes the I2C protocol for communication with the microcontroller or host system, enabling easy integration into various systems.
  • Electrically Erasable: Data can be erased and reprogrammed electrically, eliminating the need for UV erasure required by older EPROM technologies.

Application Field:

  • Embedded Systems: Commonly used in embedded systems for storing configuration data, calibration settings, or small amounts of non-volatile memory.
  • IoT Devices: Found in various Internet of Things (IoT) devices for storing network configurations, sensor data, or firmware parameters.
  • Consumer Electronics: Used in consumer electronics such as smart TVs, set-top boxes, and printers for storing critical data.
  • Automotive Electronics: Applied in automotive electronics for storing settings related to vehicle systems, diagnostics, or firmware.
  • Industrial Control Systems: Utilized in industrial control systems, PLCs (Programmable Logic Controllers), and automation equipment for configuration storage and data logging.


  • The configuration of the AT24C02D-XHM-T involves specifying the memory addresses and data to be written to or read from the EEPROM.
  • Functions of this EEPROM include storing and retrieving data reliably in various electronic systems.
  • The application fields mentioned are indicative, and the usage of this EEPROM may extend to other areas requiring non-volatile serial memory.

For detailed technical specifications, usage guidelines, and application notes, it is recommended to refer to the official datasheet and technical documentation provided by Microchip Technology. Additionally, seeking guidance from Microchip's support resources can provide insights into the optimal use of the AT24C02D-XHM-T EEPROM in specific electronic systems.


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