24LC02BHT-I/MS

Memory IC Overview

The Microchip Technology 24LC02BHT-I/MS 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 via the WP pin, ensuring data integrity. It utilizes low-power CMOS technology with a maximum read current of 1 mA and standby current of 1 µA. The component is housed in an 8-lead MSOP package and is rated for industrial temperatures from -40°C to +85°C.

Memory IC Feature Summary

• Hardware write protection for the upper half of the memory array (addresses 80h-FFh) controlled by the WP pin state
• Schmitt trigger inputs on SDA and SCL lines to suppress noise spikes and ensure reliable data transmission
• Internal page write buffer allowing storage of up to eight bytes before initiating the self-timed erase/write cycle
• Output slope control mechanism designed to eliminate ground bounce during switching operations

Memory IC Applications

• Data logging in industrial monitoring systems requiring non-volatile storage
• Configuration parameter storage in embedded controllers
• Calibration data retention in sensor interfaces
• Device identification and serial number storage in consumer electronics

Memory IC Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature grade (-40°C to +85°C) and 'MS' denotes the 8-lead MSOP package. Confirm the 'H' suffix indicates the Half-Array Write Protect variant. Ensure compatibility with the system's I2C bus voltage levels, as this device requires a minimum supply of 2.5V. Check for RoHS compliance status if required by specific manufacturing standards.

Memory IC Selection Notes

Select this component when a small, non-volatile memory solution with hardware-level write protection is needed. It is suitable for applications where power consumption must be minimized due to its low active and standby currents. The MSOP package is ideal for space-constrained printed circuit board designs. Ensure the host microcontroller supports the required I2C protocol timing specifications for reliable communication.

Memory IC Part Context

This part belongs to the 24XX02H family of serial EEPROMs, which are optimized for low-voltage operation and high reliability. The 24LC02BH variant specifically targets applications requiring operation down to 2.5V, distinguishing it from the 24AA02H series which supports lower voltages down to 1.7V. The family shares common interface protocols and functional blocks, facilitating design scalability across different memory density requirements.

Memory IC Replacement Considerations

Direct substitutes include other 24LC02BH variants in different packages such as SOIC or TSSOP, provided the pinout remains compatible. Cross-referencing with 24AA02H devices is possible if the application can accommodate the lower voltage requirement, though electrical characteristics may differ slightly. Verify that any replacement maintains the same half-array write protection functionality and package dimensions.