24AA02HT-I/MNY

Memory IC Overview

The Microchip Technology 24AA02HT-I/MNY is a 2 Kbit Electrically Erasable PROM (EEPROM) organized as one block of 256 x 8-bit memory. It features a two-wire serial interface compatible with I2C protocols. The device operates on a single supply voltage ranging from 1.7V to 5.5V, supporting maximum clock frequencies of 100 kHz at voltages below 2.5V and 400 kHz at voltages between 2.5V and 5.5V. It includes hardware write-protect functionality for the upper half of the array (addresses 80h-FFh) via the WP pin.

Memory IC Feature Summary

• Hardware write-protect capability for the upper half of the memory array
• Schmitt trigger inputs and filter circuits for noise suppression
• Output slope control designed to eliminate ground bounce
• Self-timed erase/write cycles with acknowledge polling support

Memory IC Applications

• Industrial systems requiring low-voltage operation down to 1.7V
• Embedded applications needing non-volatile data storage with half-array protection
• Bus-based communication interfaces utilizing standard I2C protocols

Memory IC Procurement Notes

Verify that the specific suffix 'HT' corresponds to the TDFN package variant within official Microchip documentation. Confirm the Industrial temperature grade (-40°C to +85°C) aligns with system requirements. Ensure the device version matches the datasheet revision DS20002105B for accurate electrical characteristics.

Memory IC Selection Notes

Select this component when a 2 Kbit EEPROM with hardware write-protection for the upper memory half is required. It is suitable for designs operating at low voltages starting from 1.7V. Consider the TDFN package constraints and ensure compatibility with I2C bus timing specifications for the target supply voltage range.

Memory IC Part Context

This part belongs to the 24XX02H family of 2 Kbit serial EEPROMs manufactured by Microchip Technology. The family shares common architectural features including the I2C interface and page write capabilities. Variants differ primarily in voltage ranges and temperature grades, with the 24AA series supporting lower voltage operation compared to the 24LC series.

Memory IC Replacement Considerations

The 24LC02BH serves as a functional equivalent within the same family but requires a minimum supply voltage of 2.5V. Verify that the replacement supports the required low-voltage operation if the design relies on voltages below 2.5V.