MCHP24AA02E48
Overview
The 24AA02E48 is a 2-Kbit I2C serial EEPROM from Microchip featuring a pre-programmed, globally unique EUI-48 node address. This device simplifies network hardware design by providing a MAC address in a plug-and-play format, eliminating the need for designers to manage their own IEEE OUI blocks. It operates over a wide voltage range of 1.7V to 5.5V and is AEC-Q100 qualified for automotive environments.
Why Choose This Part
The primary advantage is the factory-programmed EUI-48 address, which reduces manufacturing complexity and costs associated with MAC address serialization. Its 400 kHz I2C interface, Schmitt trigger inputs, and ultra-low standby current of 1uA make it an efficient choice for battery-powered applications. Furthermore, its 4000V ESD protection ensures high reliability in rugged environments.
Applications
Key Specifications
Getting Started
To interface with this device, connect the SDA and SCL lines to your microcontroller's I2C peripheral with appropriate pull-up resistors and ensure the VDD is within the 1.7V to 5.5V range. Use standard I2C libraries to read the upper memory locations (F0h-FFh) where the unique EUI-48 node address is stored. Development can be accelerated using Microchip's MPLAB Starter Kits or any generic I2C bus analyzer.
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