Microchip 24AA025E48T-I/SN: 2K I²C Serial EEPROM with Pre-Programmed EUI-48™ Node Identity

In the rapidly evolving landscape of the Internet of Things (IoT), the need for unique device identification is paramount. The Microchip 24AA025E48T-I/SN addresses this critical requirement by integrating a pre-programmed, globally unique EUI-48™ node identity into a standard 2Kbit I²C serial EEPROM. This powerful combination simplifies design, reduces component count, and accelerates time-to-market for connected devices.

This device serves a dual purpose. Primarily, it provides non-volatile memory storage for system parameters, calibration data, or user information. With its 256 x 8-bit capacity and a 1 MHz clock rate, it offers reliable performance for a wide range of applications. Its second, and most significant, function is to provide a factory-programmed, immutable 48-bit extended unique identifier (EUI-48). This identifier is crucial for establishing a unique MAC address in network interfaces, ensuring that every device on a network can be distinctly recognized.

The integration of the EUI-48 offers substantial advantages. It eliminates the need for a separate MAC address chip, saving valuable board space and reducing the Bill of Materials (BOM). Furthermore, it removes the logistical complexity and cost associated with purchasing and managing MAC address blocks from the IEEE Registration Authority. Designers can simply incorporate this single component and instantly have a guaranteed unique identity for their product.

Housed in a space-saving 8-lead SOIC package, the 24AA025E48T-I/SN is designed for robustness and reliability. It features low power consumption, essential for battery-operated IoT nodes, and supports a wide voltage range (1.7V to 5.5V) for compatibility with various system designs. Its I²C serial interface ensures easy connectivity to most microcontrollers and processors with minimal wiring.

ICGOOODFIND: The Microchip 24AA025E48T-I/SN is an elegant solution that merges essential memory functionality with a critical network identity. It is an indispensable component for designers seeking to streamline their IoT architecture, enhance security through unique identification, and bring efficient, scalable products to market faster.

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