24CS256T-I/MS

Memory IC Overview

The Microchip Technology 24CS256T-I/MS is a 256-Kbit (32K x 8) serial EEPROM utilizing 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 features a maximum access time of 70 ns in HS mode. The device includes a built-in Security Register containing a unique 128-bit serial number and user-programmable ID space, alongside Error Correction Code logic for data integrity. It supports page writes of up to 64 bytes and offers hardware or software write protection options.

Memory IC Feature Summary

• High-speed I2C communication supporting standard modes and 3.4 MHz High-Speed operation
• Integrated Security Register with factory-programmed 128-bit serial number and lockable user ID page
• Built-in Error Correction Code logic to correct single-bit read errors within four-byte blocks
• Versatile data protection via dedicated Write-Protect pin or enhanced software-configurable zone locking

Memory IC Applications

• Automotive systems requiring AEC-Q100 qualified nonvolatile memory
• Industrial applications needing reliable data storage with error correction
• Consumer electronics requiring product serialization and identification
• Systems utilizing shared I2C buses with multiple addressable devices

Memory IC Procurement Notes

Verify the specific suffix 'I/MS' confirms the Industrial temperature range (-40°C to +85°C) and MSOP-8 package type. Confirm that the 'T' designation indicates tape and reel packaging suitable for automated assembly. Ensure compatibility with the host system's I2C voltage levels and pull-up requirements for the selected clock frequency.

Memory IC Selection Notes

Select this component when high-speed data transfer rates up to 3.4 MHz are required alongside robust data integrity features. It is suitable for designs needing unique device identification without external components. Consider the enhanced software write protection if flexible zone-based security is preferred over fixed hardware pins. Verify power supply stability meets the monotonous rise requirement during startup.

Memory IC Part Context

This part belongs to the 24CS256 family of serial EEPROMs, which are backward compatible with legacy 24AA256, 24LC256, and 24FC256 devices. The T-I/MS variant specifically denotes the industrial grade version packaged in an 8-lead MSOP format and supplied in tape and reel. It shares architectural similarities with other members of the CS series but distinguishes itself through integrated ECC and advanced security registers.

Memory IC Replacement Considerations

Direct replacements include the 24CS256-I/MS (tube packaging) or 24CS256-E/MS (extended temperature). Legacy compatible substitutes such as the 24LC256 or 24AA256 may be used if High-Speed mode and ECC features are not required.