24LC04BH-E/ST

Memory IC Overview

The Microchip Technology 24LC04BH-E/ST is a 4-Kbit (512 x 8) Electrically Erasable PROM (EEPROM) utilizing a two-wire I2C serial interface. It operates within a voltage range of 2.5V to 5.5V and supports a maximum clock frequency of 400 kHz. The device features a 900 ns access time, a 16-byte page write buffer with a 5 ms maximum write cycle time, and hardware write protection for the upper half of the memory array. It is housed in an 8-lead SOIC package and rated for extended industrial temperatures from -40°C to +125°C.

Memory IC Feature Summary

• Hardware write protection for the upper half of the memory array via the WP pin
• 16-byte page write buffer for efficient data transfer
• Schmitt trigger inputs and output slope control for noise suppression

Memory IC Applications

• Data logging in industrial environments
• Configuration storage in embedded systems
• Parameter retention in battery-backed circuits

Memory IC Procurement Notes

Verify that the ordering suffix matches the required temperature grade and package type. Confirm the specific revision level against the manufacturer's datasheet to ensure compatibility with existing designs. Check for any recent product change notices regarding material or packaging updates before finalizing procurement.

Memory IC Selection Notes

Select this component when a 4-Kbit EEPROM with hardware write protection is required. Ensure the system voltage remains above 2.5V to support the 400 kHz clock speed. Consider the 8-lead SOIC package dimensions during PCB layout. Verify that the application does not require operation below 2.5V, as other variants in the family may be more suitable.

Memory IC Part Context

This part belongs to the 24XX04H family of 4-Kbit serial EEPROMs. It shares architectural similarities with the 24AA04H and 24FC04H but differs in operating voltage and clock speed specifications. The 'E' suffix denotes the extended temperature range, while 'ST' indicates the 8-lead SOIC package.

Memory IC Replacement Considerations

Direct substitutes include other 24LC04BH variants with different packages, such as 24LC04BH-E/SN or 24LC04BH-E/P. Cross-family replacements like the 24AA04H offer lower voltage operation but are limited to 100 kHz at voltages below 2.5V.