24AA64T-E/ST

Memory IC Overview

The Microchip Technology 24AA64T-E/ST is a 64 Kbit (8K x 8) Electrically Erasable PROM featuring a 2-Wire Serial Interface compatible with I²C™. It operates on a single supply voltage ranging from 1.7V to 5.5V and supports clock frequencies up to 400 kHz. The device utilizes low-power CMOS technology, drawing a maximum active current of 3 mA and standby current of 1 µA. It includes hardware write protection, Schmitt trigger inputs for noise suppression, and output slope control to eliminate ground bounce.

Memory IC Feature Summary

• Supports cascading up to eight devices on the same bus using three address pins
• Includes a 32-byte page write buffer for efficient data transfer
• Features hardware write-protect capability via the WP pin
• Provides ESD protection exceeding 4,000V

Memory IC Applications

• Personal communications systems
• Data acquisition applications
• Advanced low-power electronic designs

Memory IC Procurement Notes

Verify that the ordering suffix 'E' corresponds to the Automotive temperature grade (-40°C to +125°C) and 'T' indicates tape-and-reel packaging. Confirm compatibility with the specific I²C bus requirements and ensure the application environment does not exceed the absolute maximum ratings defined in the datasheet.

Memory IC Selection Notes

Select this component when an automotive-grade EEPROM is required for environments operating up to 125°C. Choose this part over the Industrial grade if extended temperature performance is necessary. Ensure the system design accommodates the 1.7V minimum supply voltage and 400 kHz interface speed.

Memory IC Part Context

This device belongs to the 24AA64/24LC64/24FC64 family of 64 Kbit serial EEPROMs. The 'AA' designation indicates operation down to 1.7V, while the 'E' suffix specifies the Automotive temperature range. The 'ST' suffix denotes the 8-lead TSSOP package configuration.

Memory IC Replacement Considerations

Public confirmed substitute part numbers: 24AA64T-I/ST, 24LC64T-E/ST.