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24AA025E64-I/SN

MCHP24AA025E64-I/SN

Microchip Technology
EEPROM Memory IC 2Kbit I2C 400 kHz 900 ns 8-SOIC
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Overview

The 24AA025E64-I/SN is a 2Kbit I2C serial EEPROM from Microchip featuring a pre-programmed, globally unique 64-bit node address. This pre-assigned EUI-64 identifier simplifies the manufacturing process for networked devices by providing a ready-to-use MAC address or unique ID. It operates over a wide voltage range of 1.7V to 5.5V with extremely low standby current, making it ideal for battery-powered applications.

Why Choose This Part

The primary advantage is the inclusion of a pre-programmed EUI-64 node address, which eliminates the need for engineers to purchase and manage their own blocks of MAC addresses. It also features Schmitt Trigger inputs for noise suppression and output slope control to minimize ground bounce during high-speed 400 kHz I2C communication.

Applications

Network Interface Identification
Use as a unique MAC address or EUI-64 identifier for networking hardware like Ethernet or Wi-Fi modules.
Cloud Device Onboarding
Provides a factory-programmed unique ID for secure device registration and authentication in IoT ecosystems.
Inventory Tracking
Stored node address serves as a permanent electronic serial number for asset management and hardware versioning.
Parameter Storage
Maintains calibration data and user settings in a non-volatile 2Kbit memory array alongside the unique ID.

Key Specifications

Technology EEPROM
Access Time 900 ns
Memory Size 2Kbit
Memory Type Non-Volatile
Memory Format EEPROM
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Clock Frequency 400 kHz
Memory Interface I2C
Voltage - Supply 1.7V ~ 5.5V
Memory Organization 256 x 8
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 8-SOIC
Write Cycle Time - Word, Page 5ms

Getting Started

To integrate this memory, connect the SDA and SCL lines to your microcontroller's I2C bus and provide a pull-up resistor to VDD. For software development, use any standard I2C library to read the specific memory addresses (F8h through FFh) containing the 64-bit node address. The device is compatible with 100 kHz and 400 kHz bus speeds across the full 1.7V to 5.5V supply range.

Also Consider

24AA025E48-I/SN MCHPMicrochip Technology - Choose this variant if your application specifically requires a 48-bit EUI-48 MAC address instead of a 64-bit identifier.
AT24C02D-SSHM-T MCHPMicrochip Technology - A standard 2Kbit I2C EEPROM without the pre-programmed node address for cost-sensitive designs where unique IDs are not required.