Microchip 24LC128T-E/ST: A High-Density I2C Serial EEPROM for Advanced Applications

The Microchip 24LC128T-E/ST is a 128-Kilobit serial EEPROM memory chip that represents a robust and reliable solution for non-volatile data storage in a wide array of electronic systems. Organized as 16,384 words of 8 bits each, this device provides the essential ability to retain critical data without a power supply, making it indispensable for configuration settings, calibration data, and event logging.

A key feature of this memory chip is its utilization of the I2C (Inter-Integrated Circuit) serial communication protocol. This two-wire interface, comprising a serial data line (SDA) and a serial clock line (SCL), drastically reduces the number of pins required for microcontroller interconnection. This simplicity promotes a cleaner PCB layout and lowers overall system cost. The 24LC128T-E/ST supports a 400 kHz clock frequency, ensuring efficient and sufficiently high-speed data transfers for most embedded applications.

Designed for resilience, this EEPROM is built with a high endurance rating of 1 million erase/write cycles per sector. This exceptional durability ensures that data can be updated frequently over the lifetime of the product without degradation. Furthermore, it boasts a data retention period of over 200 years, guaranteeing that information remains intact for decades. The device also incorporates hardware write-protection via a dedicated pin, safeguarding stored data from accidental corruption.

Housed in a space-saving TSSOP-8 package, the component is ideal for compact and portable designs. Its operating voltage range of 1.7V to 5.5V makes it exceptionally versatile, supporting everything from low-power battery-operated devices to standard 5V systems. The extended temperature range of -40°C to +125°C qualifies it for use in demanding industrial and automotive environments.

ICGOODFIND: The Microchip 24LC128T-E/ST stands out as a premier choice for designers seeking a high-density, reliable, and easy-to-integrate non-volatile memory solution. Its combination of I2C simplicity, high endurance, wide voltage operation, and industrial robustness makes it a cornerstone component for modern electronic design.

Keywords:

I2C EEPROM

Non-volatile Memory

High Endurance

128-Kilobit

Wide Voltage Range