24AA00T/OT

Memory IC Overview

The Microchip Technology 24AA00T/OT 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 active current of 500 µA and standby current of 1 µA. The device supports clock frequencies up to 400 kHz, offers data retention exceeding 200 years, and endures over one million erase/write cycles. It is housed in a 5-lead SOT-23 package and functions within an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Low-power CMOS technology enabling operation down to 1.8V with minimal active and standby currents
• I2C compatible 2-wire serial interface with Schmitt trigger inputs for noise suppression
• Self-timed erase/write cycle with acknowledge polling capability to maximize bus throughput
• High reliability characterized by over one million write cycles and more than 200 years of data retention

Memory IC Applications

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

Memory IC Procurement Notes

Verify the specific suffix 'T/OT' confirms the tape-and-reel packaging format and the SOT-23-5 physical footprint. Ensure the operating environment aligns with the Industrial temperature grade (-40°C to +85°C). Confirm that the system voltage remains within the 1.8V to 5.5V range to guarantee proper functionality of the internal voltage threshold detector.

Memory IC Selection Notes

Select this component when a small capacity non-volatile memory is required for simple data logging or configuration storage. The 128-bit organization is suitable for applications needing only a few bytes of persistent data. The low pin count and compact SOT-23 package make it ideal for space-constrained designs where power consumption must be minimized during both active and idle states.

Memory IC Part Context

This part belongs to the 24XX00 family of serial EEPROMs, which includes variants like the 24LC00 and 24C00. While sharing the same interface and basic architecture, the 24AA00 variant is distinguished by its ability to operate at lower voltages starting from 1.8V, whereas other family members may require higher minimum supply voltages. The 'T/OT' designation specifically indicates the reel packaging and SOT-23 package type.

Memory IC Replacement Considerations

Direct replacements within the same package and electrical specifications include the 24AA00T-I/OT. Other family members such as the 24LC00T/OT or 24C00T/OT share the interface but differ in minimum operating voltage requirements; verify voltage compatibility before substitution.