STMicroelectronics Launches Serial EEPROMs Featuring Unique 128-bit Read-Only IDs for Enhanced Traceability and Product Identification

STMicroelectronics has introduced a new family of serial EEPROMs equipped with a unique 128-bit factory-programmed read-only identifier (UID), addressing growing industry demands for product identification, traceability, and repairability.

In addition to the standard EEPROM memory space for parameter storage and data logging, each device includes a permanently locked UID programmed at ST’s factory. This enables OEMs to implement basic product recognition, anti-cloning mechanisms, and version or upgrade management without the need for more complex security components. Throughout the lifecycle of a product—from procurement and manufacturing to deployment, servicing, and disposal—the factory-set UID offers persistent identity, enabling seamless traceability, reliability analytics, and streamlined maintenance.

The M24xxx-U series launches with 64 Kbit and 128 Kbit memory variants, built on ST’s proprietary CMOS EEPROM technology, known for its high reliability. These devices support up to 4 million write cycles and offer 200-year data retention, delivering best-in-class endurance and ultra-low power consumption.

Designed for easy system integration, the EEPROMs are available in the standard SO8N package and operate across a wide voltage range of 1.7V to 5.5V. They support I²C bus modes including Standard (100 kHz), Fast (400 kHz), and Fast Mode Plus (1 MHz). Features such as random and sequential read modes, write protection for the entire memory array, and robust ESD and latch-up protection (including 4 kV HBM ESD rating) further enhance durability and integration flexibility.

This combination of secure identification and dependable performance makes the M24xxx-U series a compelling solution for applications requiring authentication, lifecycle traceability, and efficient device servicing in industrial, consumer, and embedded systems.