24AA024T-I/MS

Memory IC Overview

The Microchip Technology 24AA024T-I/MS is a 2 Kbit (256 x 8) serial electrically erasable programmable read-only memory (EEPROM). It operates on a single supply voltage ranging from 1.7V to 5.5V and features a 2-wire I²C compatible interface with a maximum clock frequency of 400 kHz. The device utilizes low-power CMOS technology, offering typical standby current of 1 μA and active read current of 1 mA. It includes hardware write protection via the WP pin, supports page writes up to 16 bytes, and provides data retention exceeding 200 years with over one million erase/write cycles.

Memory IC Feature Summary

• Hardware write-protect capability enabled by tying the WP pin to VCC
• Schmitt trigger inputs and output slope control for noise suppression and ground bounce elimination
• Self-timed erase/write cycle with automatic acknowledge polling support
• Supports cascading up to eight devices on the same bus using address pins A0, A1, and A2

Memory IC Applications

• Data storage in battery-powered portable electronic devices
• Configuration parameter storage in industrial control systems
• Calibration data retention in sensor modules
• Device identification and unique ID storage in embedded controllers

Memory IC Procurement Notes

Verify that the ordering suffix 'T' corresponds to tape-and-reel packaging as specified in the datasheet. Confirm the 'I' suffix indicates the industrial temperature range of -40°C to +85°C. Ensure the MSOP package type matches the design footprint. Cross-reference the full part number against the manufacturer's official database to confirm RoHS compliance and Pb-free status before procurement.

Memory IC Selection Notes

Select this component when a 2 Kbit EEPROM with hardware write protection is required. It is suitable for applications needing operation down to 1.7V, unlike the 24LC024 which requires a minimum of 2.5V. The MSOP package is appropriate for space-constrained surface-mount designs. Consider the 24AA025 if hardware write protection is not needed but a smaller 6-lead SOT-23 package option is desired.

Memory IC Part Context

This device belongs to the Microchip 24AA024/24LC024 family of 2 Kbit Serial EEPROMs. It shares functional similarities with the 24LC024 but differs in supply voltage requirements and write-protection availability. The 24AA series generally supports lower voltage operation starting at 1.7V, whereas the 24LC series typically starts at 2.5V. Both families utilize the same I²C interface and memory organization.

Memory IC Replacement Considerations

Public confirmed substitute part numbers include 24AA024-E/MS and 24AA024T-E/MS for automotive temperature grades. Direct replacements within the same package and function are limited to other 24AA024 variants with different suffixes for temperature or packaging.