24AA1026T-I/SN

Memory IC Overview

The Microchip Technology 24AA1026T-I/SN is a 1 Mbit (128K x 8) serial EEPROM utilizing an I2C-compatible 2-Wire interface. It operates within a voltage range of 1.7V to 5.5V and supports clock frequencies up to 400 kHz in industrial environments (-40°C to +85°C). The device features a 128-byte page write buffer, hardware write protection via the WP pin, and low power consumption with maximum read current of 450 µA.

Memory IC Feature Summary

• Supports byte and page write operations with a 128-byte internal page buffer
• Hardware write-protect capability controlled by the WP pin
• Schmitt trigger inputs provide noise suppression on SDA and SCL lines

Memory IC Applications

• Personal communications devices requiring non-volatile data storage
• Data acquisition systems needing reliable parameter retention
• Embedded controllers managing configuration settings

Memory IC Procurement Notes

Verify that the suffix 'T' indicates tape-and-reel packaging rather than tube packaging when sourcing this specific variant. Confirm the 'I' temperature grade matches your operational environment requirements. Ensure the SOIC package dimensions align with your PCB footprint specifications before finalizing procurement.

Memory IC Selection Notes

Select this component for applications requiring high-density serial storage with standard I2C compatibility. The wide voltage range allows direct interfacing with various logic levels without level shifters. Consider the page write size when designing software to optimize bus throughput and minimize write cycle times.

Memory IC Part Context

This part belongs to the 24XX1026 family, which includes variants like the 24LC1026 and 24FC1026. These devices share identical memory architecture and pinouts but differ in operating voltage ranges and maximum clock speeds. The 24AA1026 specifically offers the lowest minimum supply voltage among the standard industrial options.

Memory IC Replacement Considerations

The 24LC1026 serves as a functional substitute if the system voltage remains above 2.5V. Verify that the replacement package type matches the existing board layout constraints.