24LC04BT-E/OT

Memory IC Overview

The Microchip Technology 24LC04BT-E/OT is a 4-Kbit (512 x 8) serial EEPROM featuring an I²C interface with a maximum clock frequency of 400 kHz. It operates within a voltage range of 2.5 V to 5.5 V and supports extended industrial temperatures from -40°C to +125°C. The device utilizes an 8-bit control code '1010' for addressing, includes a 16-byte page write buffer, and offers hardware write protection via the WP pin. Access time is 900 ns, with data retention exceeding 200 years.

Memory IC Feature Summary

• Two-wire serial interface compatible with standard I²C protocols
• Hardware write-protect capability controlled by the WP pin
• Internal address pointer supporting current, random, and sequential read operations
• Schmitt trigger inputs and output slope control for noise suppression

Memory IC Applications

• Embedded systems requiring non-volatile parameter storage
• Industrial controllers needing high-temperature reliability
• Consumer electronics utilizing low-power memory solutions

Memory IC Procurement Notes

Verify the specific suffix 'E' confirms the extended temperature range (-40°C to +125°C) and 'OT' indicates the SOT-23 package. Confirm RoHS compliance status as required by project specifications. Ensure the ordering suffix matches the exact datasheet designation to guarantee correct electrical characteristics and physical dimensions.

Memory IC Selection Notes

Select this component when an I²C-compatible EEPROM is required for applications operating above 85°C. The 24LC04B series specifically requires a minimum supply voltage of 2.5 V, distinguishing it from lower-voltage alternatives like the 24AA04. Consider the SOT-23 package size constraints and the availability of hardware write protection for security requirements.

Memory IC Part Context

This part belongs to the 24XX04 family, which also includes the 24AA04 and 24FC04 variants. While sharing the same 4-Kbit capacity and I²C interface, the 24LC04B is distinguished by its 2.5 V minimum operating voltage and 400 kHz maximum clock speed, whereas other family members may support different voltage ranges or higher frequencies.

Memory IC Replacement Considerations

Direct substitutes include the 24LC04BT-I/OT for industrial temperature grades or the 24LC04BH-E/OT for alternative packaging options such as TDFN. Verify that replacement parts maintain the 2.5 V to 5.5 V operating range and 400 kHz bus speed compatibility.