The Microchip 24LC64T-I/OT: A Benchmark in Serial Memory Integration

In the realm of embedded systems and IoT devices, efficient and reliable non-volatile memory is a cornerstone for data storage and configuration settings. The Microchip 24LC64T-I/OT stands out as a premier solution, offering designers a robust and highly versatile 64 Kbit serial EEPROM. This memory IC leverages the ubiquitous I2C serial interface, making it an ideal choice for a vast array of applications where board space, power consumption, and simplicity are paramount.

Housed in a space-saving SOT-23-5 package, the 24LC64T-I/OT is designed for high-density PCB layouts typical in modern portable electronics. Its low-power operation is critical for battery-powered devices, featuring a standby current of just 1 µA (max.) and an active current of 1 mA (max.). The device is organized as 8K x 8 (65,536 bits) and supports byte-level read and write operations, providing fine-grained control over memory management. A key feature is its hardware write-protect pin, which offers an integrated data protection mechanism to prevent accidental writes to the entire memory array, safeguarding critical data.

Performance and reliability are central to its design. The 24LC64T-I/OT supports a clock frequency of 400 kHz, ensuring adequate speed for most configuration and data logging tasks. It is rated for over 1 million erase/write cycles per byte and boasts excellent data retention of over 200 years, guaranteeing data integrity throughout the lifetime of the end product. Its wide voltage range (1.7V to 5.5V) ensures compatibility with both 3.3V and 5V systems, enhancing its flexibility for use in diverse design environments.

Typical applications are extensive, ranging from storing calibration data in industrial sensors and user settings in consumer appliances to serving as a memory module for embedded microcontrollers in automotive subsystems. Its small footprint and reliability also make it perfect for use in smart cards, medical devices, and various Internet of Things (IoT) modules.

ICGOODFIND: The Microchip 24LC64T-I/OT is a highly integrated, reliable, and low-power serial EEPROM that provides an essential data storage solution for space-constrained and power-sensitive designs. Its combination of a standard I2C interface, robust data retention, and hardware write-protection makes it a superior choice for engineers across countless industries.

Keywords: I2C Interface, Serial EEPROM, Low-Power Operation, Non-Volatile Memory, Data Retention