24AA00/SN

Memory IC Overview

The Microchip Technology 24AA00/SN 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 and supports clock frequencies up to 400 kHz. The device utilizes low-power CMOS technology, offering typical standby current of 100 nA and read current of 500 µA. It provides over one million erase/write cycles with data retention exceeding 200 years. The component is housed in an 8-lead SOIC package and supports industrial temperature ranges.

Memory IC Feature Summary

• Low-voltage operation down to 1.8V with minimal power consumption
• I²C compatible 2-wire serial interface with noise suppression inputs
• High endurance with over one million write cycles and long-term data retention
• Self-timed erase/write cycles with acknowledge polling capability

Memory IC Applications

• Storage of calibration values
• Storage of identification numbers
• Storage of manufacturing information

Memory IC Procurement Notes

Verify the specific suffix 'SN' corresponds to the 8-lead SOIC package configuration. Confirm that the Industrial temperature grade (-40°C to +85°C) meets system requirements. Ensure the 1.8V minimum operating voltage aligns with the target supply rail, as this variant differs from higher voltage counterparts.

Memory IC Selection Notes

Select this part for applications requiring minimal memory capacity with low power constraints. The 1.8V operating range distinguishes it from standard 2.5V or 5V only EEPROMs. Consider the 128-bit organization for small data storage needs where sequential or random access via I²C is sufficient.

Memory IC Part Context

This component belongs to the 24XX00 family of serial EEPROMs, which includes the 24LC00 and 24C00 variants. While sharing the same physical footprint and interface protocol, the 24AA00 is specifically optimized for lower voltage operation starting at 1.8V, whereas other family members may require higher minimum voltages.

Memory IC Replacement Considerations

Public confirmed substitutes include the 24LC00/SN and 24C00/SN within the same family. Note that voltage specifications differ; the 24LC00 requires a minimum of 2.5V, and the 24C00 requires 4.5V. Verify voltage compatibility before substitution.