With the rapid development of autonomous vehicles, people are paying more attention to the functional safety of cars. Since many emerging advanced driver assistance system (ADAS) platforms have complex components and systems that are more complex than data centers, it is critical to ensure that the vehicle's hardware systems comply with various safety risk prevention standards. In fact, many current L2 and L3 autonomous vehicles use data center components and system-on-chips (SoCs) such as dedicated vision processors, GPUs, and high-performance memory.
ISO 26262 Standard Semiconductor Classification
The ISO 26262 standard aims to regulate the functional safety of autonomous vehicles. When the standard was first introduced, it did not involve too much in the field of semiconductors, but after repeated consideration, it was quickly adjusted to include semiconductors in the assessment scope to further ensure the functional safety of autonomous driving. Semiconductor products are classified into categories I, II, and III based on the complexity of the device and the necessary related safety mechanisms. System integrators tend to classify memory as a Class II device (safety analysis of a small number of operating modes/states, no internal safety mechanisms), however after a deeper look at current DRAM, you will find that memory needs to have many unknowns The complex performance and functions can achieve higher performance with lower power consumption. In addition, automotive memory not only uses the most advanced semiconductor process technology, but also needs to increase the density under the premise of continuously reducing costs. Micron believes that according to relevant standards, memory products used in the security field should be classified as Class III complex semiconductors, along with processors, SoCs and GPUs. Type III components are designed to fully comply with the ISO 26262 standard.
Micron LPDDR5 Receives ISO 26262 Standard ASIL D Certification
The ISO 26262 standard defines four different security levels from A to D in a risk classification system. Systems with a rating of A, such as taillights, have the lowest safety risk requirements, and systems with a rating of D, such as anti-lock braking systems, have the highest safety risk requirements.
Micron's LPDDR5 products have been evaluated by exida, a well-known professional company in the automotive safety field, and have achieved ISO 26262 standard ASIL-D product and process certification, consolidating our leading position in the industry. The ASIL-D product certification is the first certification for memory technology, and LPDDR5 is Micron's first ASIL compliant product.
Alexander Griessing, COO and Chief Safety Specialist at exida, said: "Micron has invested a lot of effort in optimizing the development process over the past four years to meet the highest ASIL D certification in the ISO 26262 functional safety standard. Micron's LPDDR5 family of products is based on functional safety and has Innovative security features that go well beyond industry standards and are compatible with JEDEC specifications. These technological advancements, along with the first fully ISO 26262 compliant DRAM product, mark another milestone in the semiconductor industry and will drive the next generation of reliable and secure automation The development of driving systems.”
Micron's LPDDR5 ASIL-certified products feature on-chip safety mechanisms that provide system designers with advantages over conventional JEDEC standards, such as ASIL-D-level random hardware failure indicator fault detection. Compared to traditional security mechanisms and strategies that utilize built-in ECC or redundancy to achieve necessary system-level security objectives, the security features of Micron's LPDDR5 ASIL certified products can significantly reduce power consumption, improve performance and memory efficiency, and reduce board area. Micron remains committed to advancing the automotive industry, and we are committed to designing and developing LPDDR5 products as fully ASIL-D compliant as other complex Class III devices such as processors, SoCs, and GPUs.
