24AA04T-I/MNY

Memory IC Overview

The Microchip Technology 24AA04T-I/MNY is a 4-Kbit (512 x 8) Electrically Erasable PROM (EEPROM) featuring a two-wire serial interface compatible with I²C protocols. It operates on a single supply voltage ranging from 1.7V to 5.5V, supporting maximum clock frequencies of 400 kHz at voltages above 2.5V and 100 kHz below that threshold. The device utilizes low-power CMOS technology, drawing a maximum active read current of 1 mA and standby current of 1 µA. It includes a 16-byte page write buffer, hardware write protection via the WP pin, and Schmitt trigger inputs for noise suppression. The component is housed in an 8-lead TDFN package and supports industrial temperature ranges.

Memory IC Feature Summary

• Supports bidirectional data transmission over a standard two-wire serial bus using SDA and SCL lines.
• Includes a 16-byte page write buffer to optimize write operations by storing data internally before committing to memory.
• Features hardware write protection controlled by the WP pin to inhibit write cycles when tied to VCC.
• Incorporates Schmitt trigger inputs and filter circuits on data and clock lines to suppress noise spikes.

Memory IC Applications

• Data logging applications requiring non-volatile storage of sensor readings or system parameters.
• Configuration storage for microcontrollers and embedded systems needing persistent setting retention.
• Device identification and calibration data storage in consumer electronics and industrial equipment.

Memory IC Procurement Notes

Verify the specific suffix 'I/MNY' corresponds to the Industrial temperature grade (-40°C to +85°C) and the 8-lead TDFN package type. Confirm the 'T' designation indicates tape and reel packaging rather than tube. Ensure compatibility with the host controller's I²C voltage levels, noting the 100 kHz limit at voltages below 2.5V. Cross-reference the datasheet revision DS20001708P for accurate electrical characteristics.

Memory IC Selection Notes

Select this component when a compact surface-mount solution is required for small-scale non-volatile memory needs. It is suitable for designs operating within the 1.7V to 5.5V range where low standby power consumption is critical. Consider the 16-byte page buffer efficiency for frequent small writes. Verify that the application environment remains within the specified industrial temperature limits and does not exceed the absolute maximum ratings.

Memory IC Part Context

This part belongs to the 24XX04 family of 4-Kbit serial EEPROMs manufactured by Microchip Technology. It shares functional similarities with the 24LC04B and 24FC04 variants, differing primarily in minimum operating voltage and maximum clock frequency specifications. The 24AA04 variant specifically supports operation down to 1.7V, distinguishing it from the 2.5V minimum requirement of the 24LC04B.

Memory IC Replacement Considerations

Public confirmed substitute part numbers include 24LC04B-I/MNY and 34AA04T-I/MNY. Note that while these share the same package and basic interface, the 24LC04B requires a minimum of 2.5V, and the 34AA04 supports up to 1 MHz clock speeds.