24AA04-I/MC

Memory IC Overview

The Microchip Technology 24AA04-I/MC is a 4-Kbit (512 x 8) Electrically Erasable PROM (EEPROM) featuring a two-wire I²C 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 VCC ≥ 2.5V, or 100 kHz at lower voltages. The device includes a 16-byte page write buffer, hardware write-protect capability via the WP pin, and Schmitt trigger inputs for noise suppression. It functions within an industrial temperature range of -40°C to +85°C and is housed in an 8-lead DFN package.

Memory IC Feature Summary

• Low-power CMOS technology with standby current as low as 1 µA
• Hardware write-protect functionality controlled by the WP pin
• Integrated 16-byte page write buffer for efficient data transfer
• Schmitt trigger inputs and output slope control for signal integrity

Memory IC Applications

• Data logging systems requiring non-volatile storage
• Configuration memory for embedded controllers
• Parameter storage in consumer electronics
• Industrial sensor data retention

Memory IC Procurement Notes

Verify that the specific ordering suffix corresponds to the Industrial temperature grade (-40°C to +85°C) and the 8-lead DFN package type. Confirm compatibility with the system's I²C bus voltage levels, noting that maximum clock frequency varies based on the supply voltage. Ensure the application design accounts for the hardware write-protect pin requirements if write protection is utilized.

Memory IC Selection Notes

Select this component when a 4-Kbit EEPROM with I²C interface is required for industrial environments. It is suitable for applications needing operation down to 1.7V. Consider the 8-DFN package for space-constrained designs. Verify that the system's I²C pull-up resistors are appropriate for the chosen operating speed and voltage level.

Memory IC Part Context

This part belongs to the 24XX04 family of 4-Kbit Serial EEPROMs, which also includes the 24LC04B and 24FC04 variants. While sharing similar interfaces and capacities, these variants differ in minimum operating voltage and maximum clock frequency specifications. The 24AA04 specifically supports low-voltage operation starting at 1.7V.

Memory IC Replacement Considerations

Direct substitutes within the same package and electrical specifications include other 24AA04 variants with different package suffixes (e.g., MSOP, SOIC). Cross-family replacements like the 24LC04B require verification of the minimum supply voltage, as it starts at 2.5V.