24AA64T-E/OT

Memory IC Overview

The Microchip Technology 24AA64T-E/OT is a 64-Kbit (8K x 8) serial EEPROM featuring 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 utilizes a SOT-23-5 surface-mount package and is rated for extended industrial temperatures from -40°C to +125°C. Key electrical characteristics include a maximum active current of 3 mA, standby current of 5 µA, and access time of 900 ns.

Memory IC Feature Summary

• Supports cascading up to eight devices on the same bus using hardware address pins
• Includes Schmitt trigger inputs for enhanced noise suppression
• Features output slope control to eliminate ground bounce during operation
• Provides hardware write protection via the WP pin

Memory IC Applications

• Data logging in industrial environments
• Configuration storage for embedded systems
• Parameter retention in automotive electronics

Memory IC Procurement Notes

Verify that the ordering suffix 'E' corresponds to the extended temperature range (-40°C to +125°C) rather than the standard industrial range. Confirm the 'OT' suffix matches the required SOT-23-5 package type. Ensure the specific revision of the datasheet DS20001189 is referenced for accurate electrical limits.

Memory IC Selection Notes

Select this component when low-voltage operation down to 1.7V is required alongside high-temperature resilience. The SOT-23-5 package offers a compact footprint suitable for space-constrained designs. Verify that the 400 kHz I2C speed meets system timing requirements and that the 32-byte page buffer aligns with write efficiency needs.

Memory IC Part Context

This part belongs to the 24AA64 family of 64-Kbit serial EEPROMs manufactured by Microchip Technology. It shares architectural similarities with the 24FC64 and 24LC64 series but is distinguished by its specific voltage and temperature ratings. The 'T' indicates tape-and-reel packaging, while 'E' denotes the extended temperature grade.

Memory IC Replacement Considerations

The 24AA64T-I/OT serves as a direct functional substitute if the extended temperature rating is not mandatory. Other variants within the 24AA64 series may be considered provided they match the required package and voltage specifications.