24LC08BH-E/SN

Memory IC Overview

The Microchip Technology 24LC08BH-E/SN is an 8 Kbit Electrically Erasable PROM organized as four blocks of 256 x 8-bit memory. It features a 2-wire I2C compatible serial interface with a maximum clock frequency of 400 kHz for VCC between 2.5V and 5.5V. The device operates within a supply voltage range of 2.5V to 5.5V and supports industrial (-40°C to +85°C) and automotive (-40°C to +125°C) temperature ranges. Key electrical characteristics include a typical page write time of 3 ms, standby current of 1 µA max, and read current of 1 mA max.

Memory IC Feature Summary

• Hardware write-protect capability for the upper half of the memory array (addresses 200h-3FFh).
• Integrated Schmitt trigger inputs and output slope control to suppress noise and eliminate ground bounce.
• Supports acknowledge polling to maximize bus throughput during internal write cycles.
• Includes a 16-byte page write buffer for efficient data transfer.

Memory IC Applications

• Automotive electronic systems requiring extended temperature operation.
• Industrial control systems needing hardware-level data protection.
• Embedded devices utilizing low-power I2C communication protocols.

Memory IC Procurement Notes

Verify that the specific ordering suffix corresponds to the SOIC-8 package and the Automotive (E) temperature grade. Confirm the device meets RoHS compliance requirements for your region. Ensure the design accounts for the 2.5V minimum operating voltage, as this variant does not support the lower voltages available in the 24AA08H series. Check datasheet specifications for humidity sensitivity levels before assembly.

Memory IC Selection Notes

Select this component when hardware write protection for half the array is required alongside automotive-grade thermal stability. It is suitable for applications where the 2.5V to 5.5V supply range aligns with system power rails. Consider the 400 kHz speed limit at higher voltages if high-speed data logging is necessary. Verify that the 8-pin SOIC footprint fits the PCB layout constraints.

Memory IC Part Context

This part belongs to the 24XX08H family of 8 Kbit serial EEPROMs from Microchip Technology. It shares functional similarities with the 24AA08H but differs in its minimum operating voltage specification. The 'BH' designation indicates the inclusion of half-array write protection, while the '-E' suffix denotes the extended automotive temperature range. The '/SN' suffix identifies the surface-mount SOIC package type.

Memory IC Replacement Considerations

Public confirmed substitute part numbers: None identified in source material.