24LC04BHT-I/SN

Memory IC Overview

The Microchip Technology 24LC04BHT-I/SN is a 4-Kbit (512 x 8) Electrically Erasable PROM (EEPROM) featuring a two-wire serial interface compatible with I2C protocols. It operates within a voltage range of 2.5V to 5.5V and supports clock frequencies up to 400 kHz, with an access time of 900 ns. The device utilizes low-power CMOS technology, drawing a maximum standby current of 5 µA at extended temperatures. It includes hardware write protection for the upper half-array (addresses 100h-1FFh) via the WP pin and offers a 16-byte page write buffer. The component is housed in an 8-lead SOIC package and functions reliably across an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Hardware write protection mechanism inhibits write operations to the upper half of the memory array when the WP pin is tied high.
• Integrated Schmitt trigger inputs and noise suppression filters ensure stable data transmission on noisy bus environments.
• Self-timed erase/write cycles allow the host to utilize acknowledge polling for efficient bus throughput management.
• Low-power design minimizes active read current and standby consumption, supporting energy-efficient system operation.

Memory IC Applications

• Data logging applications requiring non-volatile storage for sensor readings or event timestamps
• Configuration parameter storage in embedded systems where power-down retention is critical
• Calibration data retention for industrial instrumentation and measurement devices

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature grade. Confirm the voltage operating range aligns with the system supply, as this variant requires a minimum of 2.5V. Ensure the hardware write-protect pin configuration meets the security requirements of the target application before finalizing procurement specifications.

Memory IC Selection Notes

Select this component when a 4-Kbit capacity is sufficient and I2C compatibility is required. The industrial temperature rating makes it suitable for general-purpose electronics. Consider the 16-byte page write capability for improved write performance compared to byte-write-only devices. Verify that the system voltage does not drop below 2.5V during operation to maintain specified timing parameters.

Memory IC Part Context

This part belongs to the 24LC04BH family of 4-Kbit serial EEPROMs manufactured by Microchip Technology. The 'I' suffix denotes the industrial temperature range, while 'SN' indicates the 8-lead SOIC package. The 'T' typically signifies tape and reel packaging. This series shares architectural similarities with the 24AA04H and 24FC04H, differing primarily in voltage ranges and clock speed capabilities.

Memory IC Replacement Considerations

Direct replacements include other variants within the 24LC04BH family such as 24LC04BT-I/SN or 24LC04B-I/SN, provided the temperature grade and package dimensions are compatible. Cross-family substitutes like the 24AA04H require verification of the lower voltage support if the system operates below 2.5V.