24LC64-I/SN

Memory IC Overview

The Microchip Technology 24LC64-I/SN 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. The device operates on a single supply voltage ranging from 2.5V to 5.5V, supporting maximum clock frequencies of 100 kHz below 2.5V and 400 kHz between 2.5V and 5.5V. It includes a 32-byte page write buffer, hardware write protection via the WP pin, and Schmitt trigger inputs for noise suppression. The component is housed in an 8-lead SOIC package and supports industrial temperature ranges.

Memory IC Feature Summary

• Supports cascading up to eight devices on the same bus using functional address pins A0, A1, and A2.
• Includes a 32-byte page write buffer to facilitate efficient data storage operations.
• Features hardware write protection that inhibits write cycles when the WP pin is tied high.

Memory IC Applications

• Industrial control systems requiring non-volatile data retention
• Power management circuits needing configuration storage
• Communication and network equipment utilizing I2C interfaces

Memory IC Procurement Notes

Verify the specific ordering suffix matches the required package type and temperature grade. Confirm RoHS compliance status and ensure the selected variant aligns with the intended operating voltage range. Check for any recent Product Change Notifications regarding packaging or assembly site updates before finalizing procurement orders.

Memory IC Selection Notes

Select this component for applications requiring low-power CMOS technology with standby currents as low as 1 µA. Ensure the design accommodates the 2.5V minimum operating voltage constraint. Consider the 32-byte page write limitation when designing software drivers to prevent data corruption across page boundaries.

Memory IC Part Context

This part belongs to the 24XX64 family of 64-Kbit I²C Serial EEPROMs manufactured by Microchip Technology. The family includes variants like the 24AA64 and 24FC64, which differ primarily in operating voltage ranges and maximum clock speeds. The 24LC64 specifically targets standard 2.5V to 5.5V applications within the industrial temperature spectrum.

Memory IC Replacement Considerations

Direct replacements include other members of the 24XX64 family such as the 24AA64 or 24FC64, provided their voltage and speed specifications meet the system requirements. Verify pin compatibility and software driver support when substituting these variants.