24LC1026-E/SM

Memory IC Overview

The Microchip Technology 24LC1026-E/SM is a 1 Mbit (128K x 8) serial EEPROM utilizing an I2C-compatible 2-Wire 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 offers over one million erase/write cycles and data retention exceeding 200 years. Available in an 8-lead SOIJ package, it functions across an extended temperature range 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 A1 and A2.
• Includes hardware write protection that inhibits array writes when the WP pin is tied high.
• Features output slope control to eliminate ground bounce and Schmitt trigger inputs for enhanced noise suppression.

Memory IC Applications

• Personal communications systems requiring non-volatile data storage
• Data acquisition applications needing reliable parameter retention
• Embedded systems utilizing I2C buses for configuration memory

Memory IC Procurement Notes

Verify the specific suffix 'E' confirms the automotive-grade temperature rating (-40°C to +125°C). Confirm the '/SM' designation matches the required 8-lead SOIJ package dimensions. Ensure the voltage supply meets the minimum 2.5V requirement for proper operation at the specified 400 kHz clock frequency.

Memory IC Selection Notes

Select this component for designs requiring high-density serial EEPROM with robust environmental tolerance. The 128-byte page buffer optimizes write throughput compared to byte-write-only devices. Consider the hardware write protect feature if system security against accidental modification is critical. Verify I2C bus pull-up resistor values align with the 400 kHz operational speed.

Memory IC Part Context

This part belongs to the 24XX1026 family, which includes variants like the 24AA1026 and 24FC1026. The primary distinction lies in the operating voltage range and maximum clock frequency capabilities. The 24LC1026 specifically targets applications requiring a 2.5V minimum supply while maintaining compatibility with standard I2C protocols found in industrial and automotive electronics.

Memory IC Replacement Considerations

The 24LC1026T-E/SM serves as a tape-and-reel alternative to the tube-packaged 24LC1026-E/SM. Other family members such as the 24AA1026 or 24FC1026 share functional similarities but differ in voltage ranges and clock speeds; verify electrical specifications before substitution.