24CW640T-I/CS1668

Memory IC Overview

The Microchip Technology 24CW640T-I/CS1668 is a 64 Kbit (8K x 8) serial EEPROM utilizing an I2C interface. It operates within a supply voltage range of 1.6V to 5.5V and supports clock frequencies up to 1 MHz with a 450 ns access time. The device features software write protection and is housed in a 4-CSP package. It is rated for industrial temperatures from -40°C to +85°C, ensuring reliable non-volatile data retention.

Memory IC Feature Summary

• Supports high-speed I2C communication with 1 MHz clock capability
• Includes software-based write protection mechanisms
• Provides long-term non-volatile data storage

Memory IC Applications

• Industrial control systems requiring persistent parameter storage
• Consumer electronics needing configuration data retention
• Embedded devices managing calibration values

Memory IC Procurement Notes

Verify the specific suffix CS1668 against official Microchip documentation to confirm the exact package type and tape-and-reel specifications. Ensure the industrial temperature grade (-40°C to +85°C) matches your environmental requirements. Cross-reference the datasheet for any recent product change notices affecting this part number.

Memory IC Selection Notes

Select this component when a compact 4-pin CSP footprint is required for space-constrained designs. It serves as a suitable alternative to larger packages like TSSOP-8 if board real estate is limited. Confirm that the I2C address configuration meets system bus requirements before integration.

Memory IC Part Context

This part belongs to the 24CW series of serial EEPROMs from Microchip Technology. It shares core electrical characteristics with other variants in the family, such as the 24CW640-I/ST, but differs primarily in its physical packaging. The series is designed for general-purpose non-volatile memory applications across various industries.

Memory IC Replacement Considerations

The 24CW640-I/ST offers identical electrical performance but utilizes an 8-TSSOP package. Verify pinout compatibility and mechanical constraints before substituting. Other capacity variants in the 24CW series may require firmware adjustments due to different memory organizations.