24LC1026-E/SN

Memory IC Overview

The Microchip Technology 24LC1026-E/SN is a 1 Mbit (128K x 8) serial electrically erasable PROM featuring 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 includes a 128-byte page write buffer, hardware write-protect capability 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 SOIC 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.
• Features hardware write protection that inhibits all array writes when the WP pin is tied high.
• Includes output slope control to eliminate ground bounce during switching operations.

Memory IC Applications

• Personal communications systems requiring non-volatile data storage
• Data acquisition applications needing reliable parameter retention
• Industrial control systems operating in harsh environments

Memory IC Procurement Notes

Verify the suffix 'SN' corresponds to the 8-lead SOIC package with the specified lead form. Confirm the 'E' designation indicates the Automotive grade (-40°C to +125°C) rather than Industrial grade. Ensure the specific revision matches the required RoHS compliance status. Cross-reference the manufacturer part number against official Microchip databases to validate authenticity before procurement.

Memory IC Selection Notes

Select this component when a 1 Mbit capacity is required with I²C connectivity. The Automotive temperature rating makes it suitable for demanding environments where standard industrial grades may fail. Consider the 128-byte page write buffer for efficient bulk data transfers. Verify system voltage compatibility with the 2.5V minimum requirement before integration into low-voltage designs.

Memory IC Part Context

This device belongs to the 24XX1026 family, which also includes the 24AA1026 and 24FC1026 variants. These parts share identical functional architectures but differ in supply voltage ranges and maximum clock speeds. The 24LC1026 specifically targets applications requiring operation between 2.5V and 5.5V with 400 kHz speed capabilities.

Memory IC Replacement Considerations

Direct substitutes include the 24LC1026-I/SN for Industrial temperature range applications. The 24AA1026-SN offers wider voltage support down to 1.7V. The 24FC1026-SN provides higher speed performance up to 1 MHz. All variants maintain pin compatibility and functional equivalence.