24AA00T-I/ST

Memory IC Overview

The Microchip Technology 24AA00T-I/ST is a 128-bit (16 x 8) serial Electrically Erasable PROM 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 of 100 kHz and 400 kHz. The device utilizes low-power CMOS technology with typical read current of 500 µA and standby current of 100 nA. It offers over one million erase/write cycles, data retention exceeding 200 years, and ESD protection greater than 4000V. The component is housed in an 8-lead TSSOP package and functions within the industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Supports bidirectional data transfer via a standard 2-wire serial bus protocol compatible with I2C.
• Incorporates Schmitt trigger inputs and filter circuits for enhanced noise spike suppression on SDA and SCL lines.
• Features output slope control mechanisms designed to eliminate ground bounce during operation.
• Includes internal address pointer logic that automatically increments following each byte access.

Memory IC Applications

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

Memory IC Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging configuration rather than tube. Confirm the 'I' designation aligns with the required industrial temperature range specifications. Ensure the system design accommodates the open-drain nature of the SDA and SCL pins by implementing appropriate pull-up resistors. Validate that the operating voltage remains within the specified 1.8V to 5.5V limits to maintain functional integrity.

Memory IC Selection Notes

Select this component when a minimal memory footprint is required for non-volatile data storage in space-constrained designs. The low-voltage capability down to 1.8V makes it suitable for battery-powered applications where power efficiency is critical. The I2C interface simplifies connectivity by requiring only two general-purpose I/O pins on the host microcontroller. Consider the page write architecture if sequential data logging is necessary.

Memory IC Part Context

This device belongs to the 24XX00 family of serial EEPROMs manufactured by Microchip Technology. The family includes variants such as the 24LC00 and 24C00, which share similar architectural features but differ in minimum operating voltage requirements. The 24AA00 variant specifically supports lower voltage operation compared to other members of the series.

Memory IC Replacement Considerations

Public confirmed substitute part numbers: 24AA00-E/ST, 24AA00T-I/SN, 24AA00T-I/MF.