24CSM01T-I/SN

Memory IC Overview

The Microchip Technology 24CSM01T-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 built-in Error Correction Code (ECC) logic capable of correcting one incorrectly read bit per four-byte readout. It features a 4-Kbit Security register containing a factory-programmed 128-bit serial number and user-programmable lockable ID pages.

Memory IC Feature Summary

• Built-in Error Correction Code (ECC) logic for increased data reliability
• High-Speed I²C interface supporting up to 3.4 MHz operation
• Security register with preprogrammed 128-bit unique serial number
• Versatile data protection via hardware WP pin or enhanced software write protection

Memory IC Applications

• Consumer electronics requiring reliable nonvolatile memory storage
• Industrial applications demanding high-speed data logging
• Automotive systems utilizing AEC-Q100 qualified components
• Embedded devices needing secure identification and configuration storage

Memory IC Procurement Notes

Verify the 'I' suffix confirms the Industrial temperature grade (-40°C to +85°C). Confirm the 'SN' suffix corresponds to the 8-lead SOIC package. Ensure the 'T' indicates tape-and-reel packaging if required by assembly equipment. Cross-reference the full part number against the official Microchip datasheet DS20006781D to validate all electrical characteristics and pinouts before procurement.

Memory IC Selection Notes

Select this component when high-speed I²C communication at 3.4 MHz is required alongside robust data integrity features. The integrated ECC logic makes it suitable for environments prone to noise or where data corruption must be minimized without external error handling. Choose this over standard EEPROMs when a globally unique serial number is needed for device authentication or inventory tracking.

Memory IC Part Context

The 24CSM01 series represents Microchip's advanced serial EEPROM line designed for high-reliability applications. It integrates security features typically found in more complex memory solutions, such as hardware-level write protection and unique serialization. This specific model combines these security attributes with high-speed bus capabilities, positioning it between standard EEPROMs and more complex flash memory solutions for cost-sensitive embedded designs.

Memory IC Replacement Considerations

Direct replacements include other 24CSM01 variants with different packages (e.g., 24CSM01-E/MS for MSOP) or temperature grades. For functional equivalents with similar capacity but different interfaces, consider the 24LC series, though they lack the High-Speed mode and ECC features. Verify pin compatibility and voltage ranges when substituting.