24AA04-I/SNG

Memory IC Overview

The Microchip Technology 24AA04-I/SNG 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 with a maximum clock frequency of 400 kHz at VCC ≥ 2.5V, and 100 kHz at VCC < 2.5V. The device supports industrial temperature ranges (-40°C to +85°C), includes hardware write protection via the WP pin, and offers data retention exceeding 200 years with over one million erase/write cycles.

Memory IC Feature Summary

• Supports bidirectional two-wire serial communication protocol with Schmitt trigger inputs for noise suppression.
• Features a 16-byte page write buffer to optimize data transfer efficiency during write operations.
• Includes hardware write-protect capability that inhibits all memory writes when the WP pin is tied to VCC.
• Provides high reliability with ESD protection exceeding 4,000V and robust data retention characteristics.

Memory IC Applications

• Industrial control systems requiring non-volatile data storage
• Consumer electronics utilizing low-voltage power supplies
• Automotive applications meeting AEC-Q100 qualification standards

Memory IC Procurement Notes

Verify the specific suffix 'I/SNG' against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with system voltage levels, noting the 100 kHz limitation below 2.5V. Confirm RoHS compliance status and check for any recent Product Change Notifications affecting packaging or sourcing before finalizing procurement orders.

Memory IC Selection Notes

Select this component for designs requiring low-power EEPROM with I²C connectivity. Consider the 400 kHz speed limit at standard voltages versus the 100 kHz limit at lower voltages. Evaluate the SOIC-8 package suitability for surface mount assembly processes. Verify that the 1.7V minimum operating voltage aligns with the target application's power rail specifications.

Memory IC Part Context

This part belongs to the 24XX04 family, which also includes the 24LC04B and 24FC04 variants. While sharing similar architecture, the 24AA04 is distinguished by its 1.7V low-voltage operation capability compared to the 24LC04B's 2.5V minimum. The 24FC04 variant offers higher speed performance up to 1 MHz.

Memory IC Replacement Considerations

Direct substitutes within the same family include other 24AA04 variants with different packages such as PDIP, MSOP, or DFN. Cross-family replacements like 24LC04B require voltage level adjustments due to higher minimum operating requirements.