24CSM01-I/SN

Memory IC Overview

The Microchip Technology 24CSM01-I/SN 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 supports industrial temperatures from -40°C to +85°C. The device includes a 4-Kbit Security register containing a factory-programmed 128-bit serial number and user-lockable ID pages. Built-in ECC logic corrects single-bit read errors, while hardware and software write protection ensure data integrity.

Memory IC Feature Summary

• High-speed I²C communication supporting Standard, Fast, Fast Mode Plus, and 3.4 MHz High-Speed modes
• Integrated 4-Kbit Security register with globally unique 128-bit serial number and lockable identification page
• Built-in Error Correction Code (ECC) logic for enhanced data reliability during reads
• Versatile data protection via hardware WP pin and configurable enhanced software write protection

Memory IC Applications

• Consumer electronics requiring reliable nonvolatile memory storage
• Industrial control systems needing high-reliability data retention
• Automotive applications qualified under AEC-Q100 standards
• Embedded devices requiring unique hardware identity authentication

Memory IC Procurement Notes

Verify the specific suffix 'I/SN' confirms Industrial temperature range (-40°C to +85°C) and SOIJ package type. Confirm RoHS compliance status and check for automotive qualification requirements if deploying in vehicle environments. Ensure supply chain sources provide original manufacturer documentation to validate part authenticity and revision levels.

Memory IC Selection Notes

Select this component when a 1-Mbit capacity is required alongside high-speed 3.4 MHz data transfer rates. Choose this model for designs necessitating built-in error correction and unique device serialization without external components. Consider the SOIJ package for surface-mount applications requiring narrow footprint compatibility.

Memory IC Part Context

The 24CSM01 belongs to Microchip's CS series of serial EEPROMs, distinguished by its inclusion of security features and high-speed capabilities. Unlike standard EEPROMs, it integrates a dedicated security register and ECC logic. The 'I' designation indicates industrial temperature grading, while 'SN' specifies the 8-lead SOIJ package format.

Memory IC Replacement Considerations

Direct replacements must match the 1-Mbit capacity, I²C interface, and 3.4 MHz speed. Verify that substitute parts offer equivalent security registers and ECC functionality. Check package compatibility for SOIJ form factors and ensure voltage ranges align with 1.7V to 5.5V operation.