CAT24WC66LI-G

Memory IC Overview

The CAT24WC66LI-G is a 64K-bit (8192 x 8) serial CMOS EEPROM manufactured by onsemi. It operates via the I2C bus interface with a maximum clock frequency of 0.4 MHz. The device supports a supply voltage range of 1.8V to 5.5V and features a 32-byte page write buffer. It includes Schmitt trigger inputs for noise protection and offers partial array write protection, securing the top quarter of the memory when the WP pin is high. The component is available in an 8-pin DIP package.

Memory IC Feature Summary

• Supports I2C bus serial interface with cascading capability for up to eight devices
• Features partial array write protection controlled by the WP pin
• Includes a 32-byte page write buffer for efficient data writing
• Provides Schmitt trigger inputs to enhance noise immunity

Memory IC Applications

• Industrial control systems requiring non-volatile data storage
• Automotive electronics operating within specified temperature ranges
• Consumer devices needing reliable parameter retention
• Embedded systems utilizing I2C communication protocols

Memory IC Procurement Notes

Verify the specific suffix 'G' against the official datasheet to confirm RoHS compliance status and exact package dimensions. Confirm the manufacturer origin, as onsemi acquired Catalyst Semiconductor, which originally produced this line. Ensure the procurement channel provides valid traceability documentation for industrial or automotive grade requirements.

Memory IC Selection Notes

Select this component when a 64K-bit capacity is required with I2C connectivity. It is suitable for applications needing partial write protection and low power consumption. Consider the 8-pin DIP package availability if through-hole mounting is necessary. Verify that the 1.8V to 5.5V supply range matches the system design constraints.

Memory IC Part Context

This part belongs to the CAT24WC66 series of serial EEPROMs. The series is characterized by its I2C compatibility and robust endurance specifications. The LI-G suffix typically indicates a lead-free, green compound package compliant with environmental standards. The device is designed for general-purpose non-volatile memory applications across commercial, industrial, and automotive sectors.

Memory IC Replacement Considerations

Direct replacements include other CAT24WC66 variants with different package options such as SOIC. Cross-reference with onsemi's current catalog for updated suffixes. Ensure any substitute maintains the same 64K-bit density and I2C interface compatibility.