24LC08BHT-E/SN

Memory IC Overview

The Microchip Technology 24LC08BHT-E/SN is an 8 Kbit Electrically Erasable PROM organized as four blocks of 256 x 8-bit memory. It features a 2-wire serial I2C interface with a maximum clock frequency of 400 kHz and a typical access time of 900 ns. The device operates on a single supply voltage ranging from 2.5V to 5.5V, consuming a maximum active current of 1 mA and standby current of 1 µA. It supports page writes of up to 16 bytes with a typical cycle time of 3 ms. The component is housed in an 8-lead SOIC package and is rated for 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.
• Schmitt trigger inputs and noise filters suppress bus spikes to ensure reliable data transmission.
• Output slope control minimizes ground bounce during switching operations.
• Acknowledge polling enables the master controller to monitor internal write cycle completion.

Memory IC Applications

• Data logging systems requiring non-volatile storage
• Configuration parameter retention in embedded controllers
• Calibration data storage for sensor modules

Memory IC Procurement Notes

Verify that the ordering suffix matches the required specifications: 'H' indicates the high-voltage variant supporting 2.5V minimum operation, 'E' denotes the extended automotive temperature grade (-40°C to +125°C), and 'SN' specifies the 8-lead SOIC package. Confirm that the specific revision level aligns with your design requirements before finalizing procurement orders.

Memory IC Selection Notes

Select this part when a hardware write-protect mechanism is necessary to secure critical data against accidental modification. The 400 kHz I2C speed suits applications demanding faster data throughput than standard 100 kHz buses. Ensure the system power rail remains above 2.5V to maintain full functionality and timing specifications.

Memory IC Part Context

This component belongs to the 24AA08H/24LC08BH family of 8 Kbit serial EEPROMs. It shares architectural similarities with other devices in the series but is distinguished by its specific voltage operating range and temperature rating. The 'E' suffix differentiates it from the standard Industrial grade parts by offering enhanced thermal resilience.

Memory IC Replacement Considerations

Direct substitutes include the 24LC08BT-E/SN or 24LC08BH-E/SN. Verify that any replacement maintains the same 8-lead SOIC footprint and I2C protocol compatibility to ensure seamless integration without PCB redesign.

Memory IC FAQ

How does the hardware write-protect feature function?

Tying the WP pin to VCC inhibits write operations to the upper half of the memory array (addresses 200h-3FFh). Read operations remain unaffected regardless of the WP pin state.

What is the purpose of Acknowledge Polling?

Since the device ignores commands during the internal write cycle, the master can send a Start condition followed by the Write command address. If the device acknowledges, the write cycle is complete; otherwise, it remains busy.