24CSM01T-E/Q4B

Memory IC Overview

The Microchip Technology 24CSM01T-E/Q4B is a 1-Mbit (131,072 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 utilizes an 8-lead UDFN package. The device includes a built-in Security Register containing a preprogrammed 128-bit serial number and user-programmable ID pages. It supports Error Correction Code (ECC) logic for data integrity and offers versatile write protection options via hardware or software configuration.

Memory IC Feature Summary

• Integrated Security Register with factory-programmed unique 128-bit serial number and lockable user ID page
• Built-in Error Correction Code (ECC) logic capable of correcting single-bit errors within four-byte readouts
• Versatile data protection including hardware Write-Protect pin and enhanced software zone-based protection
• Supports I²C Manufacturer Identification function for easy device recognition on the bus

Memory IC Applications

• Consumer electronics requiring reliable nonvolatile memory storage
• Industrial applications demanding high reliability and extended temperature operation
• Automotive systems utilizing AEC-Q100 qualified components

Memory IC Procurement Notes

Verify the specific suffix 'E' indicates Extended temperature range (-40°C to +125°C). Confirm the package type corresponds to the 8-Lead UDFN variant. Ensure compatibility with the host system's I²C voltage levels and pull-up requirements for High-Speed mode operations.

Memory IC Selection Notes

Select this component when a 1-Mbit capacity is required alongside unique device serialization features. It is suitable for designs needing robust data protection mechanisms and high-speed communication capabilities. Consider the Extended temperature rating if operating in harsh environments exceeding standard industrial limits.

Memory IC Part Context

This part belongs to the 24CSM01 family of 1-Mbit Serial EEPROMs. It shares architectural similarities with other 24CS series devices but distinguishes itself through the integrated Security Register and ECC logic. The 'T' suffix denotes tape and reel packaging, while 'Q4B' specifies the 8-Lead UDFN package configuration.

Memory IC Replacement Considerations

Direct replacements must match the 1-Mbit capacity, I²C interface, and 8-lead UDFN package. Verify that substitute parts support the same voltage range and temperature specifications. Note that legacy 24CS devices without ECC or Security Registers may require firmware adjustments.