24LC08BH-I/ST

Memory IC Overview

The Microchip Technology 24LC08BH-I/ST is an 8 Kbit Electrically Erasable PROM organized as four blocks of 256 x 8-bit memory. It features a 2-Wire Serial Interface compatible with I²C™, supporting maximum clock frequencies of 100 kHz and 400 kHz. The device operates within a supply voltage range of 2.5 V to 5.5 V and supports industrial temperature ranges from -40°C to +85°C. Key electrical characteristics include a maximum active read current of 1 mA and standby current of 1 µA. It provides hardware write protection for the upper half-array (addresses 200h-3FFh) via the WP pin.

Memory IC Feature Summary

• Hardware write protection locks the upper half of the memory array when the WP pin is tied high.
• Schmitt trigger inputs and filter circuits suppress noise spikes on SDA and SCL lines.
• Output slope control minimizes ground bounce during signal transitions.
• Supports acknowledge polling to maximize bus throughput during internal write cycles.

Memory IC Applications

• Industrial control systems requiring non-volatile data storage
• Automotive electronics operating in extended temperature environments
• Consumer devices needing low-power serial memory solutions

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature grade. Confirm the device variant corresponds to the 2.5V minimum supply requirement rather than the 1.7V variant. Ensure compatibility with the intended I²C bus speed and voltage levels before finalizing procurement orders.

Memory IC Selection Notes

Select this component for applications requiring half-array write protection and robust noise immunity. Verify that the system voltage remains above 2.5V to ensure proper operation at 400 kHz speeds. Consider the TSSOP-8 package dimensions for PCB layout constraints and thermal management requirements.

Memory IC Part Context

This part belongs to the 24AA08H/24LC08H family of 8 Kbit serial EEPROMs. It shares functional similarities with other members but differs in supply voltage specifications and package availability. The 'I' suffix denotes the industrial temperature range, while 'BH' indicates the half-array write protection feature.

Memory IC Replacement Considerations

Direct substitutes include other 24LC08 variants with identical pinouts and functionality, provided they match the voltage and temperature requirements. Cross-reference datasheets to confirm interface compatibility and electrical characteristics before substitution.