24LC02BHT-E/LT

Memory IC Overview

The Microchip Technology 24LC02BHT-E/LT is a 2 Kbit (256 x 8) serial EEPROM featuring an I2C-compatible two-wire interface. It operates within a voltage range of 2.5V to 5.5V and supports clock frequencies up to 400 kHz. The device includes hardware write protection for the upper half of the memory array (addresses 80h-FFh) via the WP pin. It offers high endurance exceeding one million erase/write cycles and data retention greater than 200 years. The component is housed in a 5-lead SC-70 package and is rated for extended industrial temperatures from -40°C to +125°C.

Memory IC Feature Summary

• Hardware write protection mechanism inhibits writes to the upper half of the memory array when the WP pin is tied to VCC.
• Integrated Schmitt trigger inputs on SDA and SCL lines provide noise suppression and improved spike filtering.
• Supports page write operations with an 8-byte buffer, allowing efficient sequential data storage.
• Low-power CMOS technology ensures minimal active and standby current consumption.

Memory IC Applications

• Data logging in battery-powered portable devices
• Configuration storage in embedded systems
• Calibration data retention in industrial sensors

Memory IC Procurement Notes

Verify that the ordering suffix matches the required temperature grade and package type. Confirm the presence of the 'H' designation indicating half-array write protection functionality. Ensure compatibility with the target system's I2C bus voltage levels and pull-up resistor requirements before finalizing procurement specifications.

Memory IC Selection Notes

Select this component for applications requiring non-volatile storage with limited board space due to the compact SC-70 package. Choose this part over standard variants if hardware-level write protection for specific memory regions is necessary. Ensure the operating environment falls within the specified extended temperature range for reliable performance.

Memory IC Part Context

This device belongs to the 24XX02H family of serial EEPROMs designed for low-voltage operation. It shares architectural similarities with other members of the series but is distinguished by its specific voltage range and temperature rating. The 'LT' suffix denotes the 5-lead SC-70 surface-mount package configuration.

Memory IC FAQ

How does the Write Protect (WP) pin function?

When the WP pin is connected to VCC, write operations are inhibited for the upper half of the memory array (addresses 80h-FFh). Connecting it to VSS enables full read/write access to the entire memory.

What is the maximum clock frequency supported?

The device supports a maximum clock frequency of 400 kHz when the supply voltage is between 2.5V and 5.5V.