24LC1026-I/SM

Memory IC Overview

The Microchip Technology 24LC1026-I/SM 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 in the industrial temperature range (-40°C to +85°C). 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 data retention exceeding 200 years and endurance of over one million erase/write cycles.

Memory IC Feature Summary

• Supports both byte and page write operations with a 128-byte on-chip buffer.
• Features hardware write protection controlled by the dedicated WP pin.
• Includes Schmitt trigger inputs and output slope control for enhanced signal integrity.
• Allows cascading up to four devices on a single bus using configurable chip select pins.

Memory IC Applications

• Personal communications systems requiring non-volatile storage
• Data acquisition applications needing low-power memory
• Industrial control systems utilizing I2C communication protocols

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature grade. Confirm the voltage operating range aligns with system requirements, as the 'LC' variant specifies a minimum of 2.5V. Ensure the industrial temperature rating meets environmental specifications before finalizing procurement orders.

Memory IC Selection Notes

Select this component when a 1 Mbit capacity is required with standard I2C compatibility. The industrial temperature range suits general-purpose electronics. Consider alternative variants if operation below 2.5V or higher automotive temperatures are necessary, as these parameters define the specific electrical boundaries of this part number.

Memory IC Part Context

This device belongs to the 24XX1026 family of serial EEPROMs from Microchip Technology. It shares architectural similarities with the 24AA1026 and 24FC1026 models but differs in supply voltage ranges and maximum clock speeds. The SOIJ package provides a compact surface-mount solution suitable for space-constrained printed circuit board designs.

Memory IC Replacement Considerations

The 24LC1026-E/SM serves as a verified replacement offering extended temperature capabilities. Other family members like the 24AA1026 provide wider voltage support but may require level shifting. Verify pinout compatibility and software protocol adherence when substituting across different series.