24CS128-I/MS

Memory IC Overview

The Microchip Technology 24CS128-I/MS is a 128-Kbit (16,384 x 8-bit) 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 temperatures from -40°C to +85°C. The device includes a 1-Kbit Security Register containing a factory-programmed 128-bit serial number and user-programmable ID pages. Built-in ECC logic corrects single-bit errors, and it offers hardware or software write protection options.

Memory IC Feature Summary

• High-speed I²C communication supporting standard modes and 3.4 MHz High-Speed mode
• Integrated 1-Kbit Security Register with unique 128-bit serial number and lockable user ID page
• Built-in Error Correction Code (ECC) logic for enhanced data reliability
• Versatile write protection via dedicated WP pin or configurable software settings

Memory IC Applications

• Consumer electronics requiring reliable nonvolatile memory storage
• Industrial systems needing dependable data retention
• Automotive applications qualified under AEC-Q100 standards

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. Ensure compatibility with system voltage levels between 1.7V and 5.5V. Confirm that the required I²C clock frequency does not exceed 3.4 MHz. Check if the application necessitates the specific Security Register features or ECC functionality provided by this part number.

Memory IC Selection Notes

Select this component when a 128-Kbit capacity is required alongside high-speed data transfer capabilities up to 3.4 MHz. It is suitable for designs needing integrated serialization via the preprogrammed serial number. Choose this part over legacy compatible devices if enhanced security features, such as the lockable ID page and ECC, are necessary for the application's reliability requirements.

Memory IC Part Context

This device belongs to the 24CS series of serial EEPROMs manufactured by Microchip Technology. It is backward compatible with other common 128-Kbit serial EEPROMs like the 24LC128 and AT24C128C, facilitating easier upgrades or replacements in existing designs while adding advanced features like High-Speed mode and security registers.

Memory IC Replacement Considerations

The datasheet explicitly states backward compatibility with 24AA128, 24LC128, 24FC128, and AT24C128C serial EEPROMs.