24LC08BH-I/MS

Memory IC Overview

The Microchip Technology 24LC08BH-I/MS 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 400 kHz for supply voltages between 2.5V and 5.5V. The device operates within a voltage range of 2.5V to 5.5V and supports industrial temperature grades 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 of the array (addresses 200h-3FFh) via the WP pin.

Memory IC Feature Summary

• Hardware write protection capability for the upper half of the memory array when the WP pin is tied to VCC
• Integrated Schmitt Trigger inputs on SCL and SDA lines to suppress noise spikes and ensure stable operation
• Self-timed erase/write cycles with automatic termination and acknowledge polling support
• 16-byte page write buffer allowing efficient sequential data storage operations

Memory IC Applications

• Industrial control systems requiring non-volatile data retention in noisy environments
• Embedded devices needing secure configuration storage with half-array write protection
• Low-power battery-operated equipment utilizing low standby current consumption
• Automotive electronics operating within extended temperature ranges

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required package type, as the base part number covers multiple physical formats. Confirm the temperature grade corresponds to the intended operational environment. Ensure the design accounts for the specific voltage requirements of the LC variant compared to other family members. Check for any recent Product Change Notifications regarding packaging or material composition updates.

Memory IC Selection Notes

Select this component when half-array write protection is required alongside standard I2C compatibility. The MSOP package offers a compact surface-mount solution suitable for space-constrained designs. Consider the 400 kHz speed limit at higher voltages when designing bus timing. Verify that the system power supply remains within the specified 2.5V to 5.5V range to ensure reliable operation.

Memory IC Part Context

This device belongs to the 24AA08H/24LC08BH series of 8 Kbit serial EEPROMs. It shares functional similarities with the 24LC08B but includes enhanced features like half-array write protection and improved noise immunity through Schmitt triggers. The 'I' designation indicates the industrial temperature rating, while 'MS' specifies the Mini-Small Outline Package.

Memory IC Replacement Considerations

The 24LC08B serves as a related predecessor but lacks the half-array write protection feature found in the BH series. Direct substitution requires verifying if the application utilizes the WP pin functionality. Other variants in the same package may differ in voltage ranges or temperature specifications.