The 24AA025E48T-I/OT from Microchip Technology is a highly specialized 2K Serial EEPROM that integrates a factory pre-programmed, globally unique EUI-48™ node identity, making it an essential component for a wide range of connected Internet of Things (IoT) and networking applications. This device simplifies design and accelerates time-to-market by providing a guaranteed unique MAC address, a fundamental requirement for any network-connected device.

Housed in a space-saving SOT-23-6 package, this EEPROM is organized as 256 x 8 (2 Kbit) and features a 1 MHz clock rate for efficient communication. It operates over a broad voltage range of 1.7V to 5.5V, supporting both low-power and standard embedded systems. The built-in EUI-48™ identifier, which is programmed and locked at the factory, eliminates the need for customers to purchase and manage their own MAC address blocks, reducing logistical overhead and potential errors. The memory array offers high reliability with endurance of 1,000,000 erase/write cycles and data retention of over 200 years, ensuring the integrity of both the pre-programmed identity and user data throughout the product's lifespan.

Communication is handled via a simple and ubiquitous I²C™-compatible serial interface, allowing for easy integration with most microcontrollers and processors. The device also includes hardware write-protection features to safeguard critical data. Typical applications extend beyond general parameter storage to include providing a unique node identity for Ethernet controllers, Wi-Fi modules, Zigbee/Thread devices, and other networked sensors and modules.

ICGOOODFIND: The Microchip 24AA025E48T-I/OT is a pivotal solution for designers, merging reliable non-volatile memory with a pre-programmed, unique EUI-48™ address. This integration streamlines the manufacturing process, ensures network compliance, and significantly reduces development complexity for connected devices.

Keywords: EUI-48, MAC Address, I²C EEPROM, IoT Device, Unique Identifier.