24LC02BH-I/ST

Memory IC Overview

The Microchip Technology 24LC02BH-I/ST 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) via the WP pin. It offers a maximum page write time of 5 ms, high endurance exceeding one million erase/write cycles, and data retention over 200 years. The component is housed in an 8-lead TSSOP package and functions reliably across an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Hardware write protection for the upper half of the memory array via the WP pin
• Schmitt trigger inputs with noise suppression on SDA and SCL lines
• Self-timed erase/write cycle with acknowledge polling capability
• Low-power CMOS technology with standby current as low as 1 µA

Memory IC Applications

• Industrial control systems requiring non-volatile parameter storage
• Consumer electronics needing configuration data retention
• Embedded devices utilizing I2C bus communication protocols
• Automotive applications meeting AEC-Q100 qualification standards

Memory IC Procurement Notes

Verify the specific ordering suffix matches the required package type and temperature grade. Confirm that the 'I' designation aligns with the intended industrial operating range. Ensure compatibility with the system's I2C bus voltage levels and pull-up resistor requirements. Check for any recent Product Change Notifications regarding assembly sites or material composition updates.

Memory IC Selection Notes

Select this component when a 2 Kbit capacity with half-array write protection is required. Choose the TSSOP package for surface-mount applications needing a thin profile. Consider the 2.5V minimum supply voltage constraint compared to lower-voltage alternatives. Evaluate the 400 kHz speed requirement against system bus timing constraints.

Memory IC Part Context

This part belongs to the 24XX02H family of serial EEPROMs from Microchip Technology. It shares functional similarities with the 24AA02H but differs in minimum operating voltage. The family supports multiple package options including SOIC, MSOP, and TDFN. It utilizes a standard I2C addressing scheme compatible with most microcontrollers.

Memory IC Replacement Considerations

Direct substitutes include other 24LC02B variants with different packages such as 24LC02B-I/SN (SOIC). Cross-reference with 24AA02H series if lower voltage operation is needed, noting the voltage difference.