24CSM01T-E/SM

Memory IC Overview

The Microchip Technology 24CSM01T-E/SM 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 (-40°C to +85°C) and extended (-40°C to +125°C) temperature ranges. The device includes a built-in 128-bit unique serial number, enhanced software write protection, and Error Correction Code (ECC) logic for data integrity.

Memory IC Feature Summary

• Includes a factory-programmed 128-bit globally unique serial number stored in the Security register.
• Features built-in Error Correction Code (ECC) logic capable of correcting single-bit read errors.
• Supports High-Speed I²C mode at 3.4 MHz alongside standard 1 MHz, 400 kHz, and 100 kHz speeds.
• Provides versatile data protection via hardware WP pin and lockable enhanced software write protection zones.

Memory IC Applications

• Automotive embedded systems requiring AEC-Q100 qualification
• Industrial control units needing high-reliability nonvolatile storage
• Medical devices utilizing unique device identification features

Memory IC Procurement Notes

Verify that the ordering suffix 'T' corresponds to the tape-and-reel packaging format specified in the datasheet. Confirm the '-E' suffix indicates the Extended temperature grade (-40°C to +125°C). Ensure the MSOP package type matches the design requirements. Cross-reference the specific revision level in the latest datasheet DS20006781D to confirm compliance with current RoHS standards.

Memory IC Selection Notes

Select this component when high-speed data transfer rates up to 3.4 MHz are required for efficient system performance. Choose the Extended temperature variant for environments exceeding standard industrial limits. The integrated ECC and security registers make it suitable for applications demanding strict data integrity and device authentication without external components.

Memory IC Part Context

This part belongs to the 24CSM01 family of 1-Mbit Serial EEPROMs from Microchip Technology. It shares core architectural features with other variants in the series but is distinguished by its specific temperature rating and packaging configuration. The device is designed to replace legacy memory solutions in modern compact electronic designs.

Memory IC Replacement Considerations

Direct substitutes include other 24CSM01 variants with different packages or temperature grades, such as 24CSM01-I/MS or 24CSM01-E/SN. Verify pin compatibility and electrical specifications before substitution.

Memory IC FAQ

What is the maximum clock frequency supported by the 24CSM01?

The device supports a High-Speed I²C mode with a maximum clock frequency of 3.4 MHz, provided the supply voltage is between 2.5V and 5.5V.

How does the Error Correction Code (ECC) function work?

The built-in ECC logic can correct up to one incorrectly read bit within a four-byte readout, enhancing data reliability during access operations.