24AA64T-E/SM

Memory IC Overview

The Microchip Technology 24AA64T-E/SM is a 64-Kbit (8K x 8) serial EEPROM utilizing an I2C-compatible two-wire interface. It operates within a supply voltage range of 1.7V to 5.5V and supports clock frequencies up to 400 kHz. The device features a 32-byte page write buffer, hardware write protection via the WP pin, and Schmitt trigger inputs for noise suppression. It is housed in an 8-lead MSOP package and rated for extended industrial temperatures from -40°C to +125°C.

Memory IC Feature Summary

• Hardware write protection allows array locking by tying the WP pin high
• Supports cascading up to eight devices on a single bus using address pins A0-A2
• Includes a 32-byte page write buffer to optimize data transfer efficiency
• Features Schmitt trigger inputs and output slope control for signal integrity

Memory IC Applications

• Data logging in industrial monitoring systems
• Configuration storage for embedded controllers
• Calibration parameter retention in sensor modules
• Asset tracking identification memory

Memory IC Procurement Notes

Verify that the ordering suffix 'E' corresponds to the Extended temperature range (-40°C to +125°C) and 'SM' indicates the 8-lead MSOP package. Confirm the 'T' suffix matches the required reel packaging format. Ensure the specific revision level aligns with your design's compliance requirements.

Memory IC Selection Notes

Select this part when low-voltage operation down to 1.7V is required alongside extended temperature resilience. It is suitable for designs needing hardware-level write protection and multiple device addressing on a shared I2C bus. Compare against the 24LC64 if a higher minimum voltage threshold is acceptable.

Memory IC Part Context

This component belongs to the 24XX64 family of 64-Kbit serial EEPROMs manufactured by Microchip Technology. The family includes variants like the 24FC64 and 24LC64, which share similar interfaces but differ in maximum clock speeds and minimum operating voltages. The 24AA64 variant specifically targets applications requiring robust performance at lower supply voltages.

Memory IC Replacement Considerations

Public confirmed substitute part numbers: 24AA64-I/SM, 24AA64T-I/SM.