24AA025E48T-E/OT

Memory IC Overview

The Microchip Technology 24AA025E48T-E/OT is a 2 Kbit (256 x 8) serial EEPROM featuring an I²C interface. It operates on a single supply voltage ranging from 1.7 V to 5.5 V with a maximum clock frequency of 400 kHz and a typical access time of 900 ns. The device includes a 16-byte page write buffer and supports extended temperature operation from -40°C to +125°C. It is housed in a 6-lead SOT-23 package.

Memory IC Feature Summary

• Pre-programmed globally unique 48-bit EUI-48™ node address stored in the upper half of the array
• Supports cascading for contiguous addressing across multiple devices using chip select bits
• Includes Schmitt trigger inputs and output slope control for noise suppression and ground bounce elimination

Memory IC Applications

• System identification and inventory tracking via unique node addresses
• Embedded systems requiring low-voltage non-volatile data storage
• I²C bus networks requiring cascaded memory expansion

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required temperature range and package type. Confirm the presence of the 'E' suffix indicates automotive-grade extended temperature capability (-40°C to +125°C). Ensure the 'T' suffix corresponds to the tape and reel packaging format if required by automated assembly processes. Cross-reference the datasheet revision to confirm pinout compatibility.

Memory IC Selection Notes

Select this component when a unique hardware identifier is required alongside standard EEPROM functionality. The 24AA025 variant offers a larger 16-byte page buffer compared to the 8-byte buffer in the 24AA02E series, improving write efficiency. The extended temperature rating makes it suitable for harsh environments where industrial grade parts may fail. Verify I²C bus capacitance limits against the system design requirements.

Memory IC Part Context

This part belongs to the 24AA02XEXX family of 2 Kbit serial EEPROMs manufactured by Microchip Technology. It shares architectural similarities with the 24AA02E48 but differs in page size and addressability. The device integrates a high-voltage generator and write-protect circuitry within a low-power CMOS process, designed for applications demanding small form factors and robust data retention.

Memory IC Replacement Considerations

The 24AA025E48T-I/OT serves as a functional substitute with identical electrical characteristics but limited to industrial temperature ranges (-40°C to +85°C). Other family members like the 24AA02E48 offer similar features but utilize an 8-byte page buffer instead of 16 bytes.