24LC64T-E/OT

Memory IC Overview

The Microchip Technology 24LC64T-E/OT is a 64-Kbit Electrically Erasable PROM (EEPROM) organized as an 8K x 8-bit memory block. It operates on a single supply voltage ranging from 2.5V to 5.5V and supports a maximum clock frequency of 400 kHz via a two-wire I2C compatible serial interface. The device features a 32-byte page write buffer, self-timed erase/write cycles with a maximum duration of 5 ms, and hardware write protection. It is designed for industrial temperature ranges (-40°C to +85°C) and extended temperature ranges (-40°C to +125°C).

Memory IC Feature Summary

• Supports cascading up to eight devices on the same bus using three functional address pins.
• Includes Schmitt trigger inputs and output slope control for noise suppression and ground bounce elimination.
• Features hardware write-protect capability controlled by the WP pin to inhibit array writes.

Memory IC Applications

• Data logging in industrial monitoring systems
• Configuration storage in embedded controllers
• Parameter retention in consumer electronics

Memory IC Procurement Notes

Verify that the ordering suffix 'OT' corresponds to the TSSOP package type and tape-and-reel packaging configuration. Confirm the temperature grade 'E' matches the required extended operating range specifications for the target application environment.

Memory IC Selection Notes

Select this component when a 64-Kbit non-volatile memory solution is required with I2C compatibility. Ensure the system voltage remains within the 2.5V to 5.5V operational window. Consider the 32-byte page buffer size for write efficiency and verify that the physical footprint accommodates the TSSOP package dimensions.

Memory IC Part Context

This part belongs to the 24LC64 series of serial EEPROMs manufactured by Microchip Technology. The series shares common electrical characteristics and interface protocols across various package options, including SOIC, MSOP, and DFN variants, differentiated primarily by physical form factor and temperature rating suffixes.

Memory IC Replacement Considerations

Direct replacements include other 24LC64 variants with identical electrical specifications but different packages, such as 24LC64T-E/SN or 24LC64T-E/ST. Cross-family substitutes like 24AA64 or 24FC64 require verification of voltage compatibility and clock speed limitations.