Microchip 24CW1280T-I/MUY: A 128K I2C Serial EEPROM Optimized for Low-Voltage Applications

In the expanding universe of the Internet of Things (IoT) and portable electronics, the demand for reliable, low-power, and compact non-volatile memory solutions is greater than ever. Addressing this need, the Microchip 24CW1280T-I/MUY stands out as a high-performance 128K I2C serial EEPROM meticulously engineered for low-voltage operation, making it an ideal choice for power-sensitive designs.

This device organizes its 128 Kbit (16,384 x 8) of memory around the ubiquitous I2C serial interface. The use of this two-wire bus drastically reduces the number of I/O lines required to communicate with a microcontroller, simplifying board layout and minimizing component count. The 24CW1280T supports clock frequencies of up to 1MHz, enabling high-speed read operations and efficient data transfer, which is crucial for applications that cannot afford significant delays.

A defining characteristic of this EEPROM is its exceptionally wide voltage range from 1.7V to 5.5V. This capability is paramount for systems operating directly from a single-cell lithium battery or other low-voltage sources, as it ensures stable memory functionality even as the battery discharges. The device guarantees full operational integrity down to 1.7V, providing designers with greater flexibility and extended battery life in end products.

Beyond its voltage credentials, the 24CW1280T is packed with features that enhance system robustness and security. It includes hardware write-protection via a dedicated pin, safeguarding critical memory blocks from accidental or malicious overwrites. Furthermore, it offers advanced, user-programmable Software Write Protection features, adding an extra layer of data security. The device is also specified for extended temperature ranges (-40°C to +125°C), ensuring reliable performance in demanding environmental conditions.

Housed in a space-saving 8-pin UDFN (2x3 mm) package, this EEPROM is perfectly suited for the most space-constrained applications. Its low power consumption during both active and standby modes further cements its position as a key component in portable and battery-powered devices.

ICGOOODFIND: The Microchip 24CW1280T-I/MUY is a superior choice for designers seeking a reliable, secure, and highly efficient serial memory solution. Its combination of a wide operating voltage range, high-speed I2C interface, advanced data protection mechanisms, and miniature form factor makes it exceptionally well-suited for modern low-voltage applications across consumer, industrial, and automotive markets.

Keywords: Low-Voltage EEPROM, I2C Interface, Wide Voltage Range, Data Protection, Miniature Package.