24AA025E64-I/SN

Memory IC Overview

The Microchip Technology 24AA025E64-I/SN is a 2 Kbit Electrically Erasable PROM organized as two blocks of 128 x 8-bit memory. It features a 2-wire I2C compatible serial interface with a maximum clock frequency of 400 kHz (100 kHz for VCC < 2.5V). The device operates on a single supply ranging from 1.7V to 5.5V and supports page writes of up to 16 bytes. It includes a factory-programmed, globally unique 64-bit EUI-64 node address stored in the upper half of the array, which is permanently write-protected.

Memory IC Feature Summary

• Factory-programmed globally unique 64-bit EUI-64 node address
• Compatible with EUI-64 standard without encapsulation
• Low-power CMOS technology with standby current down to 1 µA
• Schmitt trigger inputs for noise suppression

Memory IC Applications

• Device identification in embedded systems
• Network node addressing
• Secure data storage requiring unique identifiers

Memory IC Procurement Notes

Verify the specific suffix 'I' indicates Industrial temperature range (-40°C to +85°C) and 'SN' denotes the 8-lead SOIC package. Confirm that the EUI-64 variant is required rather than the EUI-48 version. Ensure the application voltage remains within the 1.7V to 5.5V operating range for proper functionality.

Memory IC Selection Notes

Select this component when a unique hardware identifier is needed for each unit without external configuration. The 16-byte page buffer improves write efficiency compared to byte-write operations. Consider the 8-SOIC package constraints if board space allows, as smaller packages like SOT-23 may not be available for this specific part number combination.

Memory IC Part Context

This device belongs to the 24AA02XEXX family of 2 Kbit serial EEPROMs. It differs from the 24AA02E64 by offering a larger 16-byte page write buffer instead of an 8-byte buffer. It shares the same EUI-64 addressing capability but provides enhanced write performance through its increased page size.

Memory IC Replacement Considerations

The 24AA02E64 offers identical EUI-64 addressing but has an 8-byte page buffer. The 24AA025E48 provides a 16-byte buffer but uses EUI-48 addressing. Verify package compatibility when substituting.