24LC04BHT-E/OT

Memory IC Overview

The Microchip Technology 24LC04BHT-E/OT is a 4-Kbit (512 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 utilizes a 5-lead SOT-23 package and is rated for extended industrial temperatures from -40°C to +125°C. Key electrical characteristics include a maximum access time of 900 ns, a page write buffer of 16 bytes, and a maximum standby current of 5 µA.

Memory IC Feature Summary

• Hardware write-protect capability for the upper half of the memory array via the WP pin
• Integrated Schmitt trigger inputs and noise filtering on SDA and SCL lines
• Self-timed erase/write cycles with automatic acknowledge polling support
• Output slope control designed to minimize ground bounce during switching

Memory IC Applications

• Data logging in harsh industrial environments requiring high temperature stability
• Configuration storage for embedded systems utilizing low-voltage power supplies
• Parameter retention in battery-operated devices due to low active and standby currents
• Secure data storage where hardware-level write protection is required for specific memory regions

Memory IC Procurement Notes

Verify that the ordering suffix 'E' confirms the extended temperature grade (-40°C to +125°C) and 'OT' specifies the 5-lead SOT-23 package. Confirm the minimum operating voltage requirement of 2.5V aligns with the system power rail, as this variant does not support operation below 2.5V unlike other members of the 24XX04H family.

Memory IC Selection Notes

Select this component when a compact surface-mount footprint is necessary alongside extended temperature tolerance. Ensure the application voltage remains above 2.5V, as lower voltages restrict the maximum clock frequency to 100 kHz. This part is suitable for designs prioritizing physical size reduction without sacrificing high-temperature reliability or hardware write-protection features.

Memory IC Part Context

This device belongs to the 24LC04BH series of 4-Kbit serial EEPROMs manufactured by Microchip Technology. It shares architectural similarities with the 24AA04H and 24FC04H but is distinguished by its specific 2.5V minimum operating voltage and 400 kHz maximum clock speed. The 'BH' designation indicates the inclusion of half-array write protection capabilities.

Memory IC Replacement Considerations

Direct functional substitutes within the same package and temperature range include the 24LC04BT-E/OT.