24LC02BH-E/SN

Memory IC Overview

The Microchip Technology 24LC02BH-E/SN is a 2 Kbit (256 x 8) serial EEPROM featuring an I2C-compatible two-wire interface. It operates within a voltage range of 2.5V to 5.5V and supports clock frequencies up to 400 kHz. The device includes hardware write protection for the upper half of the memory array (addresses 80h-FFh). It offers a maximum access time of 900 ns, a page write buffer of 8 bytes, and a maximum write cycle time of 5 ms. The component is rated for extended industrial temperatures from -40°C to +125°C and is housed in an 8-lead SOIC package.

Memory IC Feature Summary

• Hardware write protection for the upper half of the memory array via the WP pin
• 8-byte page write buffer capability for efficient data writing
• Schmitt trigger inputs on SDA and SCL lines for noise suppression
• Self-timed erase/write cycles with automatic termination

Memory IC Applications

• Non-volatile data storage in embedded systems
• Configuration parameter retention in microcontroller-based designs
• Calibration data storage for sensor interfaces
• Device identification and serial number tracking

Memory IC Procurement Notes

Verify that the ordering suffix matches the required temperature grade and package type. Confirm the specific variant corresponds to the Extended temperature range (-40°C to +125°C) as indicated by the 'E' suffix. Ensure compatibility with the 8-lead SOIC footprint during PCB layout review. Cross-reference the datasheet revision to confirm electrical characteristics align with current design requirements.

Memory IC Selection Notes

Select this component when a 2 Kbit non-volatile memory solution with hardware write protection is required. It is suitable for applications needing operation at voltages starting from 2.5V. Consider the 400 kHz clock speed for faster bus communication compared to standard 100 kHz devices. Verify that the 8-lead SOIC package dimensions fit the available board space and assembly constraints.

Memory IC Part Context

This part belongs to the 24LC02H series of serial EEPROMs manufactured by Microchip Technology. It shares functional similarities with the 24AA02H but differs in minimum operating voltage. The series utilizes a standard I2C protocol for data transfer. Other packages in this family include TSSOP, MSOP, and PDIP variants, offering flexibility for different mounting requirements.

Memory IC Replacement Considerations

Direct replacements within the same family include other 24LC02BH variants with different temperature grades or packaging options. Verify pinout compatibility and electrical specifications before substituting. Ensure any alternative maintains the 2.5V minimum supply voltage and 400 kHz interface speed.