24CSM01-I/MS

Memory IC Overview

The Microchip Technology 24CSM01-I/MS 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 temperature grades from -40°C to +85°C. The device includes built-in ECC logic for data reliability, a preprogrammed 128-bit serial number, and versatile write protection options including hardware WP pin control and enhanced software protection via the Configuration register.

Memory IC Feature Summary

• Supports High-Speed I²C communication modes up to 3.4 MHz alongside standard industry speeds.
• Includes built-in Error Correction Code (ECC) logic capable of correcting single-bit read errors.
• Features a factory-programmed 128-bit unique serial number for device identification.
• Provides enhanced software write protection allowing individual zone locking via the Configuration register.

Memory IC Applications

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

Memory IC Procurement Notes

Verify that the ordering suffix matches the required package type and temperature grade. Confirm that the specific revision level aligns with your design requirements. Ensure compatibility with the host system's I²C bus voltage levels and pull-up resistor configurations before finalizing procurement.

Memory IC Selection Notes

Select this component when high-speed data transfer rates are necessary alongside robust security features. The integrated ECC and unique serial number make it suitable for applications demanding high data integrity and device authentication. Consider the available write protection mechanisms if data security against unauthorized modification is a priority.

Memory IC Part Context

This part belongs to the 24CSM01 family of 1-Mbit serial EEPROMs manufactured by Microchip Technology. It shares core architectural features with other variants in the series but is distinguished by its specific industrial temperature rating and MSOP package configuration.

Memory IC Replacement Considerations

Consult official substitution guides for compatible parts within the same product family or alternative manufacturers offering similar I²C EEPROM specifications with comparable voltage ranges and package dimensions.

Memory IC FAQ

How does the 24CSM01 handle data reliability during read operations?

The device utilizes built-in Error Correction Code (ECC) logic that can correct up to one incorrectly read bit within a four-byte readout, enhancing overall data reliability.

What is the function of the Security Register in this device?

The Security Register contains a read-only 128-bit serial number and a user-programmable, lockable 256-byte ID page that can be permanently protected via software sequences.