24AA04T/SN

Memory IC Overview

The Microchip Technology 24AA04T/SN is a 4-Kbit (512 x 8) serial EEPROM featuring an I²C-compatible two-wire interface. It operates on a single supply voltage ranging from 1.7V to 5.5V, with a maximum clock frequency of 400 kHz at voltages above 2.5V and 100 kHz below that threshold. The device supports industrial temperature ranges (-40°C to +85°C), offers hardware write protection via the WP pin, and includes a 16-byte page write buffer. It provides over one million erase/write cycles and data retention exceeding 200 years.

Memory IC Feature Summary

• Supports bidirectional two-wire serial communication compatible with standard I²C protocols
• Includes hardware write-protect functionality controlled by the dedicated WP pin
• Features Schmitt trigger inputs and output slope control for noise suppression and ground bounce elimination

Memory IC Applications

• Low-power embedded systems requiring non-volatile data storage
• Industrial control applications operating within specified temperature ranges
• Consumer electronics utilizing I²C bus architectures

Memory IC Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature grade. Ensure compatibility with system voltage levels, as clock frequency specifications vary based on the supply voltage range. Confirm RoHS compliance status through current manufacturer declarations prior to integration.

Memory IC Selection Notes

Select this component when a low-pin-count, non-volatile memory solution is required for small data sets. The 24AA04T/SN is suitable for designs needing hardware-level write protection and operation across a wide voltage spectrum. Consider the 16-byte page buffer efficiency for write-heavy applications compared to byte-write alternatives.

Memory IC Part Context

This part belongs to the 24XX04 family of serial EEPROMs, which also includes the 24LC04B and 24FC04 variants. While sharing similar memory organization and interface protocols, these variants differ in minimum operating voltage and maximum clock frequency capabilities. The 24AA04 series specifically targets industrial applications with a 1.7V minimum supply requirement.

Memory IC Replacement Considerations

Direct functional substitutes within the same family include the 24AA04E/SN for extended temperature operations. Other compatible devices such as the 24LC04B or 24FC04 may require voltage level adjustments due to differing minimum supply voltage requirements.