24C01CT-E/ST

Memory IC Overview

The Microchip Technology 24C01CT-E/ST is a 1-kbit (128 x 8) Electrically Erasable Programmable Read-Only Memory (EEPROM) utilizing a 2-wire I2C serial interface. It operates within a supply voltage range of 4.5 V to 5.5 V and supports clock frequencies up to 400 kHz. The device features an access time of 900 ns, a page write buffer of 16 bytes, and a maximum write cycle time of 1 ms. It is housed in an 8-SOIC package and is rated for industrial operating temperatures ranging from -40°C to +85°C.

Memory IC Feature Summary

• Supports high-speed 400 kHz I2C communication alongside standard 100 kHz mode compatibility.
• Includes a 16-byte page write buffer to optimize sequential data writing efficiency.
• Provides hardware-level protection against accidental writes via dedicated control pins.
• Ensures long-term data integrity with over one million erase/write cycles and extended retention.

Memory IC Applications

• Industrial automation systems requiring non-volatile parameter storage
• Consumer electronics for configuration and calibration data retention
• Embedded controllers needing compact serial memory for system logs

Memory IC Procurement Notes

Verify the suffix 'E' indicates the extended temperature range (-40°C to +85°C), distinct from commercial grades. Confirm the '/ST' designation corresponds to the 8-SOIC package variant. Ensure procurement channels provide RoHS-compliant units matching the specific tape-and-reel or cut-tape requirements for automated assembly processes.

Memory IC Selection Notes

Select this component when a 1-kbit capacity is sufficient for small-scale data logging or configuration storage. The industrial temperature rating makes it suitable for environments exceeding commercial limits. The I2C interface minimizes pin count, ideal for space-constrained PCB layouts where only two signal lines are available for serial communication.

Memory IC Part Context

This part belongs to the Microchip 24C01C series of low-power CMOS EEPROMs. It shares architectural similarities with other members like the 24C02 and 24C04 but offers lower density. The series is characterized by its compatibility with standard I2C protocols and robust ESD protection, ensuring reliability in noisy electronic environments.

Memory IC Replacement Considerations

Direct substitutes include the 24C01CT-I/SN for identical electrical specifications in an SOIC package, or the 24C01CT-I/MC for DFN packaging. Cross-manufacturer equivalents such as the AT24C01 may require verification of voltage tolerances and timing parameters.

Memory IC FAQ

What is the maximum clock frequency supported by this EEPROM?

The device supports a maximum clock frequency of 400 kHz, compatible with Fast-mode I2C operations.

How many write cycles are guaranteed for this memory device?

The datasheet guarantees more than one million erase/write cycles for reliable long-term operation.