24LC04BH-I/ST

Memory IC Overview

The Microchip Technology 24LC04BH-I/ST is a 4-Kbit (512 x 8) Electrically Erasable PROM (EEPROM) featuring a two-wire serial interface compatible with I2C. It operates within a voltage range of 2.5V to 5.5V and supports clock frequencies up to 400 kHz. The device includes hardware write-protect capabilities for half the array, Schmitt trigger inputs for noise suppression, and output slope control. It is housed in an 8-lead TSSOP package and functions reliably across an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Hardware write-protect capability allows locking the upper half of the memory array via the WP pin.
• Integrated Schmitt triggers and filter circuits suppress noise spikes on SDA and SCL lines.
• Output slope control minimizes ground bounce during switching operations.
• Supports page write operations with a 16-byte buffer to enhance bus throughput.

Memory IC Applications

• Data logging in industrial monitoring systems
• Configuration storage for embedded controllers
• Parameter retention in low-power IoT devices

Memory IC Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature grade (-40°C to +85°C). Confirm the 'ST' suffix matches the required 8-lead TSSOP package type. Ensure the supply voltage meets the minimum 2.5V requirement specified for the 24LC04BH series. Check RoHS compliance status if restricted substances are a constraint.

Memory IC Selection Notes

Select this component when a 4-Kbit non-volatile memory solution is needed with I2C compatibility. The 24LC04BH variant is suitable for applications requiring operation down to 2.5V, unlike the 24AA04H which supports lower voltages. Consider the TSSOP package for surface-mount assembly constraints. Verify that the 400 kHz maximum clock frequency aligns with the system bus speed requirements.

Memory IC Part Context

This part belongs to the 24XX04H family, which also includes the 24AA04H and 24FC04H variants. While sharing similar architecture and interfaces, the 24LC04BH is distinguished by its specific 2.5V minimum operating voltage and 400 kHz clock limit. The 'I' designation indicates industrial temperature performance, while 'ST' specifies the thin-shrink small-outline package.

Memory IC Replacement Considerations

Direct substitutes within the same family include 24LC04BH-E/ST for extended temperature ranges or 24LC04BH-I/P for PDIP packaging. Cross-family replacements like the 24AA04H offer lower voltage support but may require voltage level adjustments.