The Microchip 24LC16BT-E/OT: A Compact Powerhouse for Serial Data Storage

In the realm of embedded systems and electronics design, reliable non-volatile memory is a fundamental component for storing configuration data, calibration constants, or event logs. The Microchip 24LC16BT-E/OT stands out as a robust and highly versatile solution, offering 16 Kbits of Electrically Erasable Programmable Read-Only Memory (EEPROM) in a minuscule package. This memory chip leverages the ubiquitous I²C (Inter-Integrated Circuit) serial interface, making it an ideal choice for a vast array of applications where board space, power consumption, and simplicity are paramount.

Engineered for performance and durability, this EEPROM is organized as 2048 x 8 bits. A key feature of the 24LC16BT is its hardware write-protect pin that provides an extra layer of data security by preventing any inadvertent write operations. Furthermore, the device is capable of both byte-level and page-level write operations, with a 16-byte page write buffer that significantly improves data throughput when updating sequential memory locations. Its wide voltage range (1.7V to 5.5V) ensures compatibility with various logic levels, from modern low-power microcontrollers to legacy 5V systems.

The endurance and retention specifications of this chip are critical for long-term reliability. It is rated for 1,000,000 erase/write cycles per byte and boasts data retention of over 200 years. These characteristics make it suitable for systems that require frequent data updates without compromising integrity. The "OT" suffix denotes the SOT-23-5 package, an extremely small footprint that is perfect for space-constrained applications like wearable technology, sensors, and other portable devices.

Typical applications are extensive, ranging from storing user settings in consumer electronics and smart meters to serving as a dedicated memory for sensor modules and IoT nodes. Its I²C interface minimizes the required GPIO pins on the host microcontroller, simplifying board layout and reducing system cost.

ICGOODFIND: The Microchip 24LC16BT-E/OT is an exceptional choice for designers seeking a high-reliability, low-footprint, and easy-to-interface serial EEPROM. Its combination of a robust feature set, proven I²C compatibility, and industry-standard quality makes it a go-to component for ensuring data persistence across countless electronic products.

Keywords: I²C Interface, Serial EEPROM, Non-Volatile Memory, SOT-23 Package, Write Protection