24LC02B-E/MS

Memory IC Overview

The Microchip Technology 24LC02B-E/MS is a 2-Kbit (256 x 8) serial electrically erasable programmable read-only memory (EEPROM). It operates on a single supply voltage ranging from 2.5V to 5.5V and supports I²C compatible two-wire serial interfaces with maximum clock frequencies of 100 kHz at voltages below 2.5V and 400 kHz at voltages between 2.5V and 5.5V. The device features an 8-byte page write buffer, hardware write protection via the WP pin, and Schmitt trigger inputs for noise suppression. It is qualified for extended temperature operation from -40°C to +125°C.

Memory IC Feature Summary

• Hardware write-protect capability allows inhibition of write operations across the entire memory array when the WP pin is tied to VCC.
• Integrated 8-byte page write buffer enables efficient data transfer by storing multiple bytes before initiating an internal self-timed write cycle.
• Schmitt trigger inputs and filter circuits provide noise suppression on SDA and SCL lines to ensure reliable operation in noisy environments.

Memory IC Applications

• Data logging systems requiring non-volatile storage for sensor readings or event timestamps
• Configuration storage for microcontrollers and embedded systems
• Calibration data retention in industrial control equipment

Memory IC Procurement Notes

Verify that the ordering suffix 'E' corresponds to the Extended temperature range (-40°C to +125°C) and 'MS' indicates the MSOP package. Confirm the specific voltage requirements align with the 2.5V minimum operating limit defined for the 24LC02B series. Ensure compatibility with the host system's I²C bus voltage levels and pull-up resistor configurations.

Memory IC Selection Notes

Select this component when extended industrial temperature performance is required alongside standard I²C interface compatibility. The 24LC02B series is distinct from the 24AA02 due to its higher minimum operating voltage of 2.5V. Consider the MSOP package dimensions for space-constrained surface-mount designs. Verify that the application does not require the lower voltage operation available in the 24AA02 variant.

Memory IC Part Context

The 24LC02B-E/MS belongs to the 24XX02 family of 2-Kbit serial EEPROMs manufactured by Microchip Technology. This family includes variants like the 24AA02 and 24FC02, which differ primarily in operating voltage ranges and maximum clock speeds. The 24LC02B specifically targets applications requiring robust operation within the 2.5V to 5.5V supply range.

Memory IC Replacement Considerations

24LC02B-I/MS