24AA128T-I/MF

Memory IC Overview

The Microchip Technology 24AA128T-I/MF is a 16K x 8 (128 Kbit) Serial Electrically Erasable PROM (EEPROM). It operates on a single supply voltage ranging from 1.7V to 5.5V and supports I2C compatible two-wire serial interface communication with clock frequencies up to 400 kHz in the industrial temperature range (-40°C to +85°C). The device features a 64-byte page write buffer, hardware write-protect capability via the WP pin, and Schmitt trigger inputs for noise suppression. It offers high endurance of over one million erase/write cycles and data retention exceeding 200 years.

Memory IC Feature Summary

• Supports bidirectional two-wire serial bus protocol with I2C compatibility
• Includes hardware write-protect functionality controlled by the WP pin
• Features a 64-byte page write buffer for efficient data storage operations
• Provides Schmitt trigger inputs to enhance noise spike suppression

Memory IC Applications

• Personal communications devices requiring non-volatile data storage
• Data acquisition systems needing reliable parameter retention
• Industrial control applications operating within specified voltage ranges

Memory IC Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature grade (-40°C to +85°C) and 'MF' indicates the 8-lead MSOP package. Confirm the specific voltage operation requirements align with the 1.7V to 5.5V range defined for the 24AA128 series. Ensure the design accounts for the maximum clock frequency limitations at lower supply voltages as detailed in the AC characteristics table.

Memory IC Selection Notes

Select this component when a low-power CMOS EEPROM with I2C interface is required for applications needing robust data retention and high endurance. The wide supply voltage range allows flexibility in system power design. Consider the page write buffer size for throughput optimization and verify that the physical package dimensions fit the available PCB space constraints.

Memory IC Part Context

This part belongs to the 24XX128 family of 128K I2C Serial EEPROMs manufactured by Microchip Technology. The family includes variants such as the 24LC128 and 24FC128, which differ primarily in minimum operating voltage and maximum clock frequency specifications. The 24AA128 variant is specifically optimized for operation down to 1.7V while maintaining standard I2C timing parameters.

Memory IC Replacement Considerations

Compatible substitutes include the 24LC128 and 24FC128 from the same manufacturer, provided the application voltage and speed requirements are met. Verify pinout compatibility and ensure that the temperature grade and package type match the original design specifications.