24LC64XT-I/ST

Memory IC Overview

The Microchip Technology 24LC64XT-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 within the specified voltage range and includes a 32-byte page write buffer. It offers 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 functional address pins A0, A1, and A2.
• Includes hardware write-protect capability via the WP pin to inhibit write operations while maintaining read access.
• Features Schmitt trigger inputs and output slope control to suppress noise spikes and prevent ground bounce.

Memory IC Applications

• Industrial data logging
• Power management systems
• Communication and network equipment

Memory IC Procurement Notes

Verify that the specific ordering suffix 'X/ST' corresponds to the X-Rotated TSSOP package configuration. Confirm the temperature grade 'I' matches the required industrial operating range of -40°C to +85°C. Ensure the voltage specifications align with the system's power supply constraints before finalizing procurement.

Memory IC Selection Notes

Select this component when a low-voltage EEPROM with I²C compatibility is required for applications needing hardware write protection. The X-Rotated TSSOP package is suitable for space-constrained surface-mount designs. Consider the 32-byte page write buffer for efficient data handling in systems requiring frequent small updates.

Memory IC Part Context

This part belongs to the 24LC64 family of 64-Kbit serial EEPROMs manufactured by Microchip Technology. The family shares common electrical characteristics and interface protocols but differs in package types and specific voltage ranges depending on the variant (e.g., 24AA64 vs. 24LC64). The 'XT' designation indicates the specific rotated TSSOP packaging option.

Memory IC Replacement Considerations

Direct replacements include other 24LC64 variants with different packages such as 24LC64-I/SN or 24LC64-I/MS, provided the physical footprint and pinout are compatible. Verify that any substitute maintains the 2.5V minimum operating voltage requirement.