24AA00T/ST

Memory IC Overview

The Microchip Technology 24AA00T/ST is a 128-bit (16 x 8) serial EEPROM featuring an I²C-compatible 2-wire interface. It operates on a single supply voltage ranging from 1.8V to 5.5V, with typical read current of 500 µA and standby current of 100 nA. The device supports clock frequencies up to 400 kHz and includes Schmitt trigger inputs for noise suppression. It offers over one million erase/write cycles and data retention exceeding 200 years. The component is housed in a 5-lead SOT-23 package and is rated for industrial temperature operation from -40°C to +85°C.

Memory IC Feature Summary

• Low-voltage CMOS technology enabling operation down to 1.8V with minimal power consumption
• I²C compatible bidirectional serial interface with Schmitt trigger inputs for enhanced noise immunity
• Self-timed erase/write cycle with internal address pointer for sequential access
• High reliability specifications including extensive ESD protection and long-term data retention

Memory IC Applications

• Storage of calibration values in electronic systems
• Retention of identification numbers for device tracking
• Recording manufacturing information during production processes

Memory IC Procurement Notes

Verify the specific suffix 'T/ST' corresponds to the tape-and-reel packaging format within the SOT-23 footprint. Confirm that the 'I' designation aligns with the required industrial temperature range for your deployment environment. Ensure compatibility with the system's I²C bus voltage levels given the wide operating range.

Memory IC Selection Notes

Select this component when a compact memory solution is required for small data sets such as IDs or settings. The low voltage capability makes it suitable for battery-powered applications. Consider the SOT-23 package size constraints against available PCB real estate. Verify that the master controller supports the necessary I²C start and stop conditions for reliable communication.

Memory IC Part Context

This part belongs to the 24XX00 family of serial EEPROMs, which also includes the 24LC00 and 24C00 variants. While functionally similar regarding interface and memory organization, these variants differ primarily in their minimum operating voltage requirements and availability in automotive-grade temperature ranges. The 24AA00 specifically targets lower voltage applications compared to the standard 24C00.

Memory IC Replacement Considerations

Direct substitutes include other members of the 24XX00 family such as the 24LC00 or 24C00, provided the system voltage meets their respective minimum thresholds. Cross-reference pinouts and package dimensions to ensure mechanical compatibility.