24AA025E48T-I/OT

Memory IC Overview

The Microchip Technology 24AA025E48T-I/OT is a 2 Kbit (256 x 8) serial EEPROM featuring a pre-programmed, globally unique 48-bit EUI-48™ node address. It operates on a single supply voltage ranging from 1.7V to 5.5V and supports I²C bus communication with clock frequencies up to 400 kHz at VCC ≥ 2.5V, or 100 kHz at lower voltages. The device utilizes a 6-lead SOT-23 surface-mount package and includes a 16-byte page write buffer for efficient data handling. It offers industrial temperature range operation (-40°C to +85°C), high endurance exceeding one million erase/write cycles, and data retention of over 200 years.

Memory IC Feature Summary

• Factory-programmed globally unique 48-bit EUI-48™ node address stored in the upper half of the memory array
• Compatible with EUI-48™ standards and supports encapsulation for EUI-64™ applications
• Features a 16-byte page write buffer to optimize write throughput
• Includes Schmitt trigger inputs and output slope control for noise suppression and ground bounce elimination

Memory IC Applications

• Network devices requiring unique hardware identification
• IoT modules needing persistent node identity storage
• Industrial equipment utilizing I²C-based addressing schemes

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required temperature grade and package type. Confirm the presence of the 'E48' designation indicates the inclusion of the pre-programmed 48-bit EUI address rather than standard user-only memory. Ensure compatibility with the target system's I²C pull-up requirements and voltage levels before finalizing procurement.

Memory IC Selection Notes

Select this component when a unique IEEE-assigned identifier is required directly within the memory structure. The 24AA025 variant provides a larger 16-byte page buffer compared to the 8-byte buffer found in the 24AA02E series. Choose the Industrial (I) grade for standard commercial environments operating between -40°C and +85°C.

Memory IC Part Context

This part belongs to the 24AA02XEXX family of 2 Kbit serial EEPROMs designed specifically for node identity applications. It shares functional similarities with the 24AA02E48 but distinguishes itself through an expanded page write buffer size. The device integrates non-volatile memory with permanent factory programming capabilities for network addressing.

Memory IC Replacement Considerations

The 24AA02E48 serves as a functional substitute if the larger page buffer is not required, though it lacks the cascading capability provided by the A0-A2 pins present on the 24AA025 series.