High-Density 2-Mbit Serial EEPROM Memory Solution with Microchip AT25M02-SSHM-T
The demand for reliable, high-density non-volatile memory continues to grow across a wide range of applications, from industrial automation and automotive systems to smart meters and consumer electronics. Addressing this need, Microchip Technology's AT25M02-SSHM-T stands out as a premier 2-Mbit serial EEPROM memory solution, offering a robust combination of high capacity, industry-standard interfacing, and exceptional reliability.
This memory IC provides a substantial 2,097,152 bits of storage, organized as 262,144 bytes, making it well-suited for storing large datasets, parameter settings, event logs, and firmware updates in space-constrained designs. A key advantage of the AT25M02 is its serial peripheral interface (SPI), which enables high-speed data transfer while maintaining a minimal pin count. This drastically simplifies board layout and reduces the number of GPIOs required from the host microcontroller, lowering overall system cost and complexity.

The device supports a wide voltage range from 1.7V to 3.6V, making it ideal for both modern low-power microcontrollers and legacy systems. Its low power consumption is critical for battery-powered and energy-sensitive applications. Furthermore, it features a high clock frequency of up to 85 MHz in its fastest operating mode, ensuring that data can be written or read rapidly, which is essential for improving overall system performance and responsiveness.
Endurance and data retention are paramount for non-volatile memory. The AT25M02-SSHM-T is engineered for high endurance, capable of supporting over 4 million write cycles per sector, and offers a data retention period of over 100 years. This ensures that critical information remains intact through the product's entire lifecycle, even in harsh operating environments. The device also includes advanced hardware and software write-protection schemes to prevent accidental overwrites and enhance data security.
Available in an 8-contact SOIC package, it is designed for compatibility with standard automated assembly processes, facilitating easy integration into new and existing designs.
ICGOODFIND: The Microchip AT25M02-SSHM-T is an optimal high-density EEPROM solution, delivering a powerful blend of large storage capacity, a fast SPI interface, ultra-low power operation, and legendary reliability for next-generation connected devices.
Keywords: Serial EEPROM, SPI Interface, High Density, Non-Volatile Memory, Low Power Consumption.
