24CS256T-I/OT

Memory IC Overview

The Microchip Technology 24CS256T-I/OT is a 256-Kbit (32K x 8) serial EEPROM featuring an I2C interface with High-Speed mode support up to 3.4 MHz. It operates within a voltage range of 1.7V to 5.5V and supports industrial temperature ranges from -40°C to +85°C. The device includes a built-in 128-bit factory-programmed serial number, user-lockable security registers, and Error Correction Code logic for data integrity.

Memory IC Feature Summary

• Integrated 128-bit globally unique serial number and lockable identification page
• Built-in Error Correction Code logic for increased reliability
• High-Speed I2C interface supporting up to 3.4 MHz operation
• Versatile write protection via hardware pin or software configuration

Memory IC Applications

• Automotive systems requiring AEC-Q100 qualification
• Industrial applications needing reliable nonvolatile memory storage
• Consumer electronics utilizing compact SOT-23 packaging

Memory IC Procurement Notes

Verify the specific suffix 'I/OT' confirms the Industrial temperature grade (-40°C to +85°C) and the 5-lead SOT-23 tape-and-reel package. Confirm that the 'ECC' designation in the part description matches the required error correction functionality. Ensure the ordering quantity aligns with the standard reel size specified by the manufacturer.

Memory IC Selection Notes

Select this component when high-speed data transfer rates are necessary alongside robust data protection features. The inclusion of ECC logic makes it suitable for environments where data corruption risks are higher. The SOT-23 package offers a space-saving solution for dense circuit board layouts compared to larger footprint options.

Memory IC Part Context

This part belongs to the 24CS256 family of serial EEPROMs designed for backward compatibility with legacy devices like the 24LC256. It distinguishes itself through enhanced security features, including a dedicated security register and manufacturer identification commands, while maintaining standard I2C protocol compliance.

Memory IC Replacement Considerations

The datasheet notes backward compatibility with 24AA256, 24LC256, 24FC256, and AT24C256C serial EEPROMs. Verify pinout and voltage specifications before substituting these parts.