24LC64FT-I/ST

Memory IC Overview

The Microchip Technology 24LC64FT-I/ST is a 64-Kbit Electrically Erasable PROM organized as an 8K x 8-bit memory block. It features a Two-Wire Serial Interface compatible with I2C protocols and operates on a single supply voltage ranging from 2.5V to 5.5V. The device supports clock frequencies up to 400 kHz and includes hardware write protection for the upper quarter of the array (addresses 1800h-1FFFh). It utilizes low-power CMOS technology, offering a maximum read current of 400 µA and standby current of 1 µA in industrial temperature grades (-40°C to +85°C).

Memory IC Feature Summary

• Hardware write protection for the upper quarter of the memory array via the WP pin.
• 32-byte page write buffer capability for efficient data writing.
• Schmitt trigger inputs designed to suppress noise spikes on serial lines.
• Output slope control implemented to eliminate ground bounce effects.

Memory IC Applications

• Personal communication devices requiring low power consumption.
• Data acquisition systems needing non-volatile storage.
• Industrial applications operating within specified temperature ranges.
• Power management circuits utilizing serial interface protocols.

Memory IC Procurement Notes

Verify that the ordering suffix 'T' corresponds to tape-and-reel packaging rather than tube packaging when sourcing components. Confirm the 'I' designation indicates the Industrial temperature range (-40°C to +85°C) rather than Extended grade. Ensure the specific part number matches the required voltage specifications for your application design.

Memory IC Selection Notes

Select this component for designs requiring I2C compatibility with hardware write protection capabilities. Consider the 24LC64F series for applications needing operation down to 2.5V. Evaluate package availability, specifically TSSOP options, against board space constraints. Compare endurance ratings and data retention periods against long-term storage requirements.

Memory IC Part Context

This component belongs to the 24AA64F/24LC64F/24FC64F family of 64-Kbit serial EEPROMs. The 'LC' variant specifically denotes operation starting at 2.5V, distinguishing it from the 1.7V capable 'AA' and 'FC' counterparts. The 'FT' suffix indicates surface mount packaging in a tape and reel format suitable for automated assembly processes.

Memory IC Replacement Considerations

Public confirmed substitute part numbers include 24LC64F-I/ST for tube packaging variants within the same series.