24AA128-I/MF

Memory IC Overview

The Microchip Technology 24AA128-I/MF is a 16K x 8 (128 Kbit) Serial Electrically Erasable PROM (EEPROM). It operates with a single supply voltage ranging from 1.7V to 5.5V and features an I2C compatible two-wire serial interface. The device supports a maximum clock frequency of 400 kHz and includes a 64-byte page write buffer. It offers hardware write protection, Schmitt trigger inputs for noise suppression, and output slope control. The component is rated for industrial temperature ranges (-40°C to +85°C) and provides data retention exceeding 200 years.

Memory IC Feature Summary

• Supports cascading up to eight devices on the same bus using configurable chip address inputs.
• Includes hardware write-protect functionality controlled by the WP pin to inhibit write operations.
• Features Schmitt trigger inputs and output slope control to suppress noise and eliminate ground bounce.

Memory IC Applications

• Personal communications systems
• Data acquisition applications
• Low-power electronic devices

Memory IC Procurement Notes

Verify that the ordering suffix corresponds to the DFN-8 package type. Confirm the temperature grade matches the industrial specification requirements. Ensure the voltage range aligns with the system's power supply capabilities. Check for RoHS compliance status if required by environmental regulations. Validate the manufacturer part number against official Microchip documentation.

Memory IC Selection Notes

Select this component for applications requiring low-power operation and broad voltage compatibility. Consider the 64-byte page write capability for efficient data storage. Evaluate the need for hardware write protection in critical data environments. Assess the physical space constraints for the DFN-8 package. Verify interface compatibility with the host microcontroller's I2C controller.

Memory IC Part Context

This device belongs to the 24XX128 family, which includes the 24LC128 and 24FC128 variants. These parts share similar functional architectures but differ in voltage ranges and clock frequencies. The 24AA128 specifically supports operation down to 1.7V, unlike the 24LC128 which requires a minimum of 2.5V. This family is designed for advanced, low-power memory applications.

Memory IC Replacement Considerations

The 24LC128 and 24FC128 are functionally similar within the same datasheet. Substitution requires verifying voltage level compatibility, as the 24LC128 has a higher minimum operating voltage. Clock frequency specifications also vary between these variants. Package pinouts remain consistent across the family.