24LC64X-I/ST

Memory IC Overview

The Microchip Technology 24LC64X-I/ST is a 64-Kbit Electrically Erasable PROM (EEPROM) organized as an 8K x 8-bit memory block. It features a two-wire serial interface compatible with the I²C protocol, supporting clock frequencies up to 400 kHz at supply voltages between 2.5V and 5.5V. The device operates within an industrial temperature range of -40°C to +85°C and utilizes low-power CMOS technology.

Memory IC Feature Summary

• Supports page write operations for up to 32 bytes of data
• Allows cascading up to eight devices on the same bus using functional address pins
• Includes hardware write-protect capability via the WP pin

Memory IC Applications

• Industrial systems requiring non-volatile data storage
• Power management circuits
• Communication and network equipment

Memory IC Procurement Notes

Verify that the specific ordering suffix 'X' corresponds to the X-Rotated TSSOP package configuration. Confirm the 'I' designation matches the required industrial temperature range specifications. Ensure the voltage requirements align with the 2.5V minimum operating limit defined for the 24LC64 series.

Memory IC Selection Notes

Select this component when a 64-Kbit EEPROM with I²C compatibility is required. The X-Rotated TSSOP package offers a compact surface-mount solution suitable for space-constrained designs. Consider the 400 kHz maximum clock speed and 2.5V to 5.5V supply range for system integration.

Memory IC Part Context

This part belongs to the 24XX64 family, which includes the 24AA64, 24FC64, and 24LC64 variants. While sharing similar architecture, the 24LC64 variant specifically requires a minimum supply voltage of 2.5V, distinguishing it from other family members that support lower voltage operation down to 1.7V.

Memory IC Replacement Considerations

Direct replacements include other packages within the 24LC64 family such as 24LC64-I/SN or 24LC64-I/MS, provided the physical footprint and pinout are compatible with the existing design constraints.