24LC04B-E/MS

Memory IC Overview

The Microchip Technology 24LC04B-E/MS is a 4-Kbit Electrically Erasable PROM (EEPROM) organized as two blocks of 256 x 8-bit memory. It features a Two-Wire Serial Interface compatible with I²C protocols, supporting maximum clock frequencies of 100 kHz at voltages below 2.5V and 400 kHz at voltages between 2.5V and 5.5V. The device operates within a supply voltage range of 2.5V to 5.5V and supports an extended industrial temperature range from -40°C to +125°C. Key electrical characteristics include a maximum standby current of 5 µA and a typical access time of 900 ns.

Memory IC Feature Summary

• Supports bidirectional data transfer via a standard Two-Wire Serial Interface compatible with I²C protocols.
• Includes hardware write protection functionality controlled by the WP pin to inhibit write operations when tied to VCC.
• Features Schmitt Trigger inputs and filter circuits on SCL and SDA pins for noise suppression.
• Provides output slope control designed to eliminate ground bounce during signal transitions.

Memory IC Applications

• Embedded systems requiring non-volatile storage for configuration parameters.
• Industrial control devices operating in extended temperature environments.
• Data logging applications utilizing page write capabilities for efficient data buffering.

Memory IC Procurement Notes

Verify that the specific ordering suffix corresponds to the MSOP-8 package type and the Extended temperature grade (-E). Confirm compliance with RoHS directives and ensure the component meets AEC-Q100 qualification requirements if intended for automotive-grade applications. Cross-reference datasheet revision numbers to ensure accurate timing specifications.

Memory IC Selection Notes

Select this component when operation requires a minimum supply voltage of 2.5V and an extended temperature range up to 125°C. It is suitable for designs needing hardware write protection and compatibility with standard I²C bus architectures. Consider the 16-byte page write buffer for applications prioritizing write throughput over byte-by-byte operations.

Memory IC Part Context

This part belongs to the 24XX04 family of serial EEPROMs manufactured by Microchip Technology. The family includes variants such as the 24AA04 and 24FC04, which differ primarily in minimum operating voltage and maximum clock frequency. The 24LC04B specifically targets applications requiring 2.5V operation with 400 kHz speed capabilities.

Memory IC Replacement Considerations

The 24LC04BT-I/MS serves as a direct substitute within the same package offering Industrial temperature ratings instead of Extended. Other family members like the 24AA04 or 24FC04 may require voltage level adjustments due to different operational ranges.