The Microchip 24AA01T-I/OT: A Benchmark in 1K Serial EEPROM Memory

In the realm of embedded systems and IoT devices, the need for reliable, compact, and efficient non-volatile memory is paramount. The Microchip 24AA01T-I/OT stands out as a quintessential solution, offering 1Kbit of Electrically Erasable Programmable Read-Only Memory (EEPROM) in an ultra-miniature SOT-23 packaging. 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 exceptionally versatile, supporting a wide spectrum of applications from battery-powered portable electronics to robust industrial systems. Its low power consumption design makes it ideal for energy-sensitive projects, ensuring extended battery life. Communication is achieved via the ubiquitous I2C (Inter-Integrated Circuit) serial interface, supporting clock speeds of up to 400 kHz for efficient data transfer. This two-wire interface simplifies design integration, reducing the number of GPIO pins required from the host microcontroller.

The memory array is organized as 128 x 8 (128 bytes) and features hardware write-protection via a dedicated pin, safeguarding critical data from unintended overwrites. Furthermore, the chip boasts a endurance of 1,000,000 erase/write cycles and a data retention period of over 200 years, guaranteeing long-term reliability. Its extended temperature range of -40°C to +85°C ensures stable performance in harsh environments.

Typical applications range from storing device configuration parameters, calibration data, and small user settings in consumer electronics to serving crucial roles in medical devices, smart sensors, and automotive modules.

ICGOOODFIND: The Microchip 24AA01T-I/OT is a highly integrated, robust, and miniature EEPROM solution. Its combination of a standardized I2C interface, exceptional endurance, wide voltage operation, and minimal footprint makes it an outstanding choice for designers seeking reliable memory in space-constrained applications.

Keywords: I2C Interface, Serial EEPROM, Low-Power Operation, Non-Volatile Memory, SOT-23 Package.