24LC02B-I/MS

Memory IC Overview

The Microchip Technology 24LC02B-I/MS is a 2-Kbit (256 x 8) serial EEPROM utilizing an I²C-compatible two-wire interface. It operates within a supply voltage range of 2.5V to 5.5V and supports clock frequencies up to 400 kHz. The device features an 8-byte page write buffer, self-timed erase/write cycles with a maximum duration of 5 ms, and hardware write protection via the WP pin. It is housed in an 8-lead SOIC package and rated for industrial temperatures from -40°C to +85°C.

Memory IC Feature Summary

• Supports high-speed 400 kHz operation at voltages of 2.5V or higher
• Includes an 8-byte page write buffer for efficient data transfer
• Provides hardware write protection through the dedicated WP pin

Memory IC Applications

• Data logging systems requiring non-volatile storage
• Configuration memory for embedded controllers
• Parameter storage in consumer electronics

Memory IC Procurement Notes

Verify that the specific part number matches the required voltage range, as the 24LC02B variant requires a minimum of 2.5V. Confirm the 'I' suffix indicates the industrial temperature grade (-40°C to +85°C). Ensure the 'MS' suffix corresponds to the 8-lead SOIC package type. Cross-reference the datasheet revision to confirm compatibility with current manufacturing standards.

Memory IC Selection Notes

Select this component when a low-pin-count, non-volatile memory solution is needed for small data sets. It is suitable for applications where power consumption must be minimized during standby. Consider the page write buffer size if frequent small writes are expected. Verify that the system bus voltage remains above 2.5V to ensure reliable 400 kHz communication speeds.

Memory IC Part Context

This device belongs to the 24XX02 family of serial EEPROMs, which includes variants like the 24AA02 and 24FC02. While sharing similar interfaces and capacities, these variants differ in operating voltage ranges and maximum clock frequencies. The 24LC02B specifically targets standard 3.3V and 5V logic systems, distinguishing it from lower-voltage or higher-speed alternatives within the same product line.

Memory IC Replacement Considerations

Direct substitutes include other 24LC02B variants in different packages, such as 24LC02B-I/P (PDIP) or 24LC02B-I/SN (SOIC), provided the physical footprint allows. For voltage flexibility, the 24AA02 series may be considered, though it supports lower voltages.