Secure Serial EEPROM Memory: Microchip AT24CS02-XHM-T with Factory-Programmed 128-Bit Serial Number

In the realm of embedded systems and connected devices, secure and reliable data storage is a fundamental requirement. The Microchip AT24CS02-XHM-T stands out as a specialized serial EEPROM memory IC designed to address critical needs for both non-volatile memory and hardware-based security. This device integrates a robust 2-Kbit Electrically Erasable Programmable Read-Only Memory (EEPROM) with a factory-lasered, unique 128-bit serial number, providing a powerful solution for applications where authenticity, traceability, and security are paramount.

The core memory array offers 256 bytes of storage, organized as 32 pages of 8 bytes each, and is accessible via a standard I²C-compatible serial interface. This allows for easy integration with a vast array of microcontrollers and processors. The interface supports a 400 kHz clock speed, enabling efficient read and write operations. More importantly, the integrated 128-bit serial number is pre-programmed by Microchip during manufacturing. This number is permanently etched into the silicon, making it immutable and tamper-proof. This unique identifier serves as an unclonable hardware root of trust, which is essential for:

Anti-Counterfeiting: Genuine products can be authenticated by verifying their unique serial number against a secure database, protecting brand integrity and revenue.

Secure Pairing: Devices can use this serial number as a unique key to establish encrypted communication channels, ensuring that they only communicate with authorized partners.

Inventory and Traceability: The unique ID simplifies logistics, inventory management, and tracking throughout a product's entire lifecycle, from manufacturing to deployment.

The AT24CS02-XHM-T is offered in a space-saving 8-lead TSSOP package, making it suitable for compact and portable electronics. Its operating voltage range of 1.7V to 5.5V ensures compatibility with both modern low-power systems and legacy 5V designs. Furthermore, it features a 1-million program/erase cycle endurance and a 100-year data retention capability, underscoring its reliability for long-term deployments.

ICGOODFIND: The Microchip AT24CS02-XHM-T is an exceptional solution that successfully merges dependable non-volatile memory with robust hardware security. Its factory-programmed, unchangeable 128-bit serial number provides a simple yet powerful mechanism to combat counterfeiting, enable secure device identification, and enhance supply chain management, making it an ideal choice for the Internet of Things (IoT), medical devices, and consumer electronics.

Keywords: Secure Serial EEPROM, Factory-Programmed Serial Number, Hardware Authentication, Anti-Counterfeiting, I²C Interface.