SK Hynix LPDDR5X Gets Top-Rated ASIL-D Certification for Vehicle Memory Function Safety

*This content was translated by AI.

SK Hynix announced on the 19th that it has obtained ASIL-D (Automatic Safety Integrity Level) certification, the highest grade of ISO 26262, an international standard for automobile functional safety, with the latest LPDDR5X vehicle DRAM product.

ASIL-D is the highest level of functional safety applied to areas that can directly lead to human damage in the event of a failure of electronic and electrical systems in a vehicle. T̈V S̈D, a global functional safety certification body, comprehensively evaluates and grants the overall product design, verification, and quality management system from the development process. With this certification, SK Hynix officially proved its technology to meet not only high performance but also safety and reliability at the same time in the vehicle memory field.

LPDDR5X is a low-power DDR5X standard for mobile devices, and it is an extended memory to on-device AI, servers, and full-length devices due to up to 10.7Gbps speed and improved power efficiency.

This time, the ASIL-D certified LPDDR5X vehicle DRAM will be applied to next-generation automotive systems such as ADAS (advanced driver assistance system), autonomous driving, and vehicle infotainment. In particular, it is designed to handle large amounts of data reliably in software-centric vehicle (SDV) environments while minimizing the possibility of system errors. It is evaluated that it is competitive as a memory that is in charge of key operations of the vehicle by implementing high bandwidth and low power characteristics at the same time.

With the rapid development of the automobile industry, the competition standards for vehicle DRAMs are also changing. In the past, performance improvement and defect rate reduction were key, but recently, securing functional safety that predicts and controls the possibility of failure in advance has emerged as a key indicator. From the design stage, the ability to reflect functional safety mechanisms is becoming a major differentiator in the vehicle memory market.

In response to these changes, SK Hynix applied design, failure notification, self-diagnosis and repair functions to the LPDDR5X vehicle DRAM that maintains stable data reliability even in extreme environments. From the circuit and device design stage, safety has been strengthened by reflecting error correction codes (ECC), duplexing of fuse for repair, and notification function based on error severity diagnosis.

T̈V S̈D comprehensively verified not only the functional safety performance of the product, but also the safety architecture and design concept, error prevention, detection and diagnosis mechanism, development and verification process, and quality management system, and acknowledged that SK Hynix's process meets global automobile industry standards.

By establishing a functional safety management system (FSM), SK Hynix has managed the entire process from defining customer requirements to designing, verifying, and mass production through standardized processes. It also met the ASIL-D requirement level by applying a management system based on strict indicators such as SPFM, LFM, and PMHF in preparation for accidental failure.

The ASIL-D certification is seen as a milestone that shows that the vehicle memory business strategy is evolving around safety and reliability. Based on this, SK Hynix plans to expand its scope of application in the autonomous driving and future mobility markets.

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*This content was translated by AI.