24AA04-I/MS

Memory IC Overview

The Microchip Technology 24AA04-I/MS is a 4-Kbit (512 x 8) Electrically Erasable PROM (EEPROM) featuring a two-wire I²C compatible serial interface. It operates on a single supply voltage ranging from 1.7V to 5.5V and supports clock frequencies up to 400 kHz at voltages of 2.5V or higher, with 100 kHz compatibility below 2.5V. The device includes a 16-byte page write buffer, hardware write protection via the WP pin, and Schmitt trigger inputs for noise suppression. It is rated for industrial temperatures (-40°C to +85°C), offers over one million erase/write cycles, and retains data for more than 200 years.

Memory IC Feature Summary

• Low-power CMOS technology enabling operation down to 1.7V with minimal active and standby currents.
• I²C compatible two-wire serial interface supporting standard and fast mode clock frequencies.
• Hardware write-protect capability that inhibits all write operations when the WP pin is tied high.
• Built-in noise protection using Schmitt triggers and output slope control to eliminate ground bounce.

Memory IC Applications

• Embedded systems requiring non-volatile storage for configuration parameters.
• Industrial control devices needing reliable data retention in harsh environments.
• Consumer electronics utilizing low-voltage power supplies for memory backup.

Memory IC Procurement Notes

Verify the specific ordering suffix matches the required package type, as the base part number covers multiple form factors. Confirm the temperature grade corresponds to your operational environment requirements. Ensure the voltage range aligns with your system's power supply specifications before finalizing procurement.

Memory IC Selection Notes

Select this component for applications requiring small memory capacity with robust noise immunity. The 24AA04-I/MS is suitable for designs operating between 1.7V and 5.5V. Consider the 16-byte page buffer for efficient bulk writes. Verify that the I²C bus speed requirements do not exceed 400 kHz at the minimum operating voltage.

Memory IC Part Context

This device belongs to the 24XX04 family, which also includes the 24LC04B and 24FC04 variants. While sharing similar architecture, these variants differ in minimum operating voltage and maximum clock frequency. The 24AA04 specifically supports lower voltage operation compared to the 24LC04B.

Memory IC Replacement Considerations

Direct substitutes within the same package include other 24AA04 variants such as 24AA04-I/MC or 24AA04-I/SN. Cross-family replacements like 24LC04B are possible but require verification of voltage level compatibility.