24LC1025T-E/SN

Memory IC Overview

The Microchip Technology 24LC1025T-E/SN 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 SOIC package and rated for industrial temperatures 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

• Personal communications systems requiring non-volatile data storage
• Data acquisition applications needing reliable parameter retention
• Industrial control systems operating across extended temperature ranges

Memory IC Procurement Notes

Verify that the ordering suffix 'E' corresponds to the automotive temperature grade (-40°C to +125°C) and 'SN' indicates the 8-lead SOIC package. Confirm the specific revision level matches the design requirements, as datasheet updates may alter electrical characteristics or pin configurations over time.

Memory IC Selection Notes

Select this component when a 1-Mbit capacity is required with I²C connectivity. Ensure the system voltage remains above 2.5V to maintain 400 kHz operation; lower voltages restrict the maximum clock frequency to 100 kHz. Consider the 128-byte page size for write optimization strategies.

Memory IC Part Context

This part belongs to the 24XX1025 family, which includes variants like the 24AA1025 and 24FC1025. These devices share identical physical layouts and functional protocols but differ in supply voltage ranges and maximum clock speeds. The 'LC' designation specifically denotes the 2.5V minimum operating voltage requirement.

Memory IC Replacement Considerations

The 24LC1025T-I/SM is a compatible alternative offering the same functionality in an SOIJ package with an industrial temperature range (-40°C to +85°C). Verify package dimensions and thermal performance before substitution.