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New serial EEPROM family features unique ID
14th April 2025
Sheryl Miles
STMicroelectronics has introduced a series of serial EEPROMs that contain a 128-bit read-only ID (UID) to meet market requirements for product recognition, tracking, and repairability.
In addition to conventional EEPROM user-memory space for parameter storage and data logging, the read-only UID is preprogrammed in the ST factory and permanently locked. This lets OEMs quickly and easily take advantage of the UID for basic product identification and clone detection as an alternative to an entry-level secure element. The UID can also support versioning and upgrade control.
With memory sizes from 32Kbit to 2Mbit, each device retains its factory-programmed identity throughout the end-product life cycle, from sourcing and manufacture through to field deployment, maintenance, and disposal. The UID provides seamless traceability, enabling reliability analysis and simplifying equipment re- and repair.
Initially available in 64Kbit and 128Kbit, the M24xxx-U series are based on ST’s proprietary CMOS EEPROM technology. The process ensures a high level of reliability, with an industry-leading four million write cycles and 200-years data retention, as well as very consumption.
Easing integration, the memories are delivered in the industry-standard SO8N package and have a wide operating-voltage range, from 1.7V to 5.5V. All devices support 100kHz (standard mode), 400kHz (fast mode), and 1MHz (fast mode plus) I²C bus modes. There’s also support for random and sequential read modes, as well as a write-protect mode for the entire memory array. Enhanced ESD/latch-up protection and 4kV Human Body Model ESD protection are also provided.
The 64Kbit/s M24C64-UFMN6TP is available now priced from $ 0.13 and the 128 Kbit/s M24128-UFMN6TP, also available now, is priced from $ 0.15 for orders of 10,000 pieces.
