24AA1025T-I/SN

Memory IC Overview

The Microchip Technology 24AA1025T-I/SN is a 1-Mbit (128K x 8) serial EEPROM utilizing an I²C-compatible interface. It operates within a supply voltage range of 1.7V to 5.5V and supports clock frequencies up to 400 kHz in the industrial temperature range (-40°C to +85°C). The device features a 128-byte page write buffer, hardware write protection via the WP pin, and Schmitt trigger inputs for noise suppression.

Memory IC Feature Summary

• Supports cascading up to four devices on a single bus using configurable chip select pins A0 and A1.
• Includes hardware write protection that inhibits array writes when the WP pin is tied high.
• Features output slope control designed to eliminate ground bounce during operation.

Memory IC Applications

• Personal communications systems requiring non-volatile data storage
• Data acquisition applications needing low-power memory solutions
• Industrial control systems operating across wide voltage ranges

Memory IC Procurement Notes

Verify the specific suffix 'I/SN' corresponds to the Industrial temperature grade and SOIC-8 package. Confirm the datasheet revision matches the required specifications. Ensure the ordering quantity aligns with the manufacturer's standard packaging options for tape and reel delivery.

Memory IC Selection Notes

Select this component for designs requiring 1-Mbit capacity with I²C connectivity. The 24AA1025 variant specifically supports voltages down to 1.7V, unlike the 24LC1025 which requires higher minimums. Consider the 128-byte page buffer efficiency for bulk data writes compared to byte-write-only alternatives.

Memory IC Part Context

This part belongs to the 24XX1025 family, which includes the 24LC1025 and 24FC1025 variants. These devices share identical pinouts and functional protocols but differ in voltage ranges and maximum clock speeds. The 24AA1025 is optimized for broad voltage compatibility in industrial environments.

Memory IC Replacement Considerations

The 24LC1025T-I/SN serves as a functional substitute if the application voltage remains above 2.5V. The 24FC1025T-I/SN offers higher speed capabilities up to 1 MHz but requires a minimum voltage of 1.8V. Verify pin compatibility and software protocol adherence before substitution.