24LC64XT-E/ST

Memory IC Overview

The Microchip Technology 24LC64XT-E/ST is a 64-Kbit (8K x 8) Electrically Erasable PROM featuring an I²C-compatible two-wire serial interface. It operates on a single supply voltage ranging from 2.5V to 5.5V and supports clock frequencies up to 400 kHz. The device includes a 32-byte page write buffer, hardware write-protect capability via the WP pin, and Schmitt trigger inputs for noise suppression. It is housed in an 8-lead X-Rotated TSSOP package and is qualified for extended temperature operation from -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 a 32-byte page write buffer to optimize data transfer efficiency.
• Features hardware write protection to secure memory content against unauthorized modifications.

Memory IC Applications

• Embedded systems requiring non-volatile configuration storage
• Industrial sensor calibration parameter retention
• Consumer electronics user preference recording

Memory IC Procurement Notes

Verify that the ordering suffix 'X' corresponds specifically to the X-Rotated TSSOP package variant as defined in the manufacturer's documentation. Confirm that the 'E' suffix indicates the Extended temperature range specification (-40°C to +125°C). Ensure compatibility with the host system's I²C voltage levels and pull-up requirements before finalizing procurement.

Memory IC Selection Notes

Select this component when an I²C serial EEPROM with extended industrial temperature ratings is required. The X-Rotated TSSOP package offers specific board layout advantages compared to standard TSSOP configurations. This part is suitable for applications needing byte-level random access and hardware write protection within a compact surface-mount footprint.

Memory IC Part Context

This device belongs to the 24LC64 family of 64-Kbit serial EEPROMs manufactured by Microchip Technology. It shares core electrical characteristics with other variants in the series but utilizes the X-Rotated TSSOP package format. The family provides low-power CMOS technology with high endurance and long data retention capabilities for reliable non-volatile data storage.

Memory IC Replacement Considerations

Direct replacements include other 24LC64 variants such as 24LC64T-E/ST or 24LC64-I/ST, provided the package type difference is acceptable. Verify that substitute parts maintain the same 2.5V minimum operating voltage and 400 kHz maximum clock frequency specifications.