24LC1025T-E/SM

Memory IC Overview

The Microchip Technology 24LC1025T-E/SM is a 1-Mbit (128K x 8) serial EEPROM utilizing an I²C-compatible interface. It operates within a voltage range of 2.5V to 5.5V and supports clock frequencies up to 400 kHz. The device features a 128-byte page write buffer, hardware write protection via the WP pin, and Schmitt trigger inputs for noise suppression. It is housed in an 8-lead SOIJ package and rated for automotive temperature ranges from -40°C to +125°C.

Memory IC Feature Summary

• Supports cascading up to four devices on a single bus using configurable chip select pins A0 and A1.
• Includes a 128-byte page write buffer to optimize data transfer efficiency.
• Features hardware write protection controlled by the WP pin to prevent unintended memory modifications.

Memory IC Applications

• Advanced low-power personal communications systems
• Data acquisition applications requiring non-volatile storage
• Automotive electronic modules operating under extended temperature conditions

Memory IC Procurement Notes

Verify that the ordering suffix 'E' corresponds to the Automotive temperature grade (-40°C to +125°C) and the 'T' indicates tape-and-reel packaging. Confirm the specific package variant matches the required footprint, as the datasheet lists both SOIJ and SOIC options for this series. Ensure supply chain documentation aligns with the manufacturer's RoHS compliance standards.

Memory IC Selection Notes

Select this component when an I²C interface is required for 1-Mbit non-volatile storage in automotive environments. The 2.5V minimum supply voltage distinguishes it from lower-voltage variants like the 24AA1025. Verify that the system design accommodates the 400 kHz maximum clock speed and utilizes the hardware write protect feature if data integrity against writes is critical.

Memory IC Part Context

This part belongs to the 24XX1025 family, which includes the 24AA1025 and 24FC1025. While sharing identical memory architecture and interface protocols, the 24LC1025 is specifically characterized for automotive reliability and operates with a higher minimum voltage threshold compared to the industrial-grade 24AA1025.

Memory IC Replacement Considerations

The 24LC1026 is a compatible alternative offering expanded address capabilities while maintaining the same I²C interface and package form factor. Other family members such as the 24AA1025 or 24FC1025 may serve as substitutes but require verification of voltage range and temperature specifications.