Microchip 24LC02BHT-E/OT: A Compact 2K I²C Serial EEPROM in SOT-23 Package

In the world of embedded systems and IoT devices, efficient and reliable non-volatile memory is essential for storing configuration data, calibration constants, or user settings. The Microchip 24LC02BHT-E/OT stands out as a robust solution, offering 2K bits (256 bytes) of Electrically Erasable Programmable Read-Only Memory (EEPROM) in an ultra-compact SOT-23 package. This device is engineered for applications where board space is at a premium and low-power operation is critical.

Operating over a broad voltage range of 1.7V to 5.5V, this serial EEPROM is versatile enough to be used in a wide array of systems, from battery-powered portable electronics to industrial control modules. Its low standby current makes it particularly suitable for power-sensitive designs. Communication is handled via the ubiquitous I²C (Inter-Integrated Circuit) protocol, supporting speeds up to 400 kHz. This two-wire interface simplifies design integration, reduces component count, and allows multiple devices to share the same bus, saving valuable microcontroller pins.

The 24LC02BHT-E/OT features hardware write-protection via a dedicated WP (Write Protect) pin. When asserted, this pin safeguards the entire memory array from inadvertent writes, ensuring data integrity in noisy environments or during power transitions. The device also boasts a endurance of 1 million erase/write cycles and a data retention period of over 200 years, guaranteeing long-term reliability.

Housed in a space-saving SOT-23-5 package, this EEPROM is ideal for the most space-constrained applications, such as wearables, sensors, and other miniaturized consumer electronics. The extended temperature range (-40°C to +125°C) of the ‘HT’ suffix ensures stable operation in harsh environmental conditions.

ICGOOODFIND: The Microchip 24LC02BHT-E/OT is a quintessential component for designers seeking a miniature, reliable, and low-power non-volatile memory solution. Its combination of a tiny form factor, robust I²C interface, and extensive hardware protection makes it an excellent choice for modern electronic designs.

Keywords: I²C EEPROM, SOT-23 Package, Low-Power Memory, Non-Volatile Storage, Hardware Write-Protection.