Steven Woo, Vice President and Distinguished Inventor at Rambus Systems and Solutions, once remarked, "When you drive a driverless car, you'll notice it has an extra need for storage that isn't related to driving itself." This means that while DRAM might be the go-to choice for speed in some scenarios, other types of storage are better suited for different applications. But what exactly are these other storage types?
Although there's a lot of talk about storage needs in autonomous vehicles, fewer people discuss the storage requirements of other essential systems in a modern car. In fact, there are four main automotive systems that rely on storage, each with unique demands:
â– **Powertrain:** NOR Flash
NOR flash memory is designed to operate under extreme temperatures, ranging from -40°C to +125°C, making it ideal for powertrain applications. It ensures reliable code storage and supports both traditional internal combustion engines and newer technologies like electric vehicles (EVs), hybrid electric vehicles (HEVs), and plug-in hybrid electric vehicles (PHEVs). Additionally, it enhances features such as transmission shift control, start/stop functionality, and advanced cooling systems.
â– **Communication System:** Multi-Chip Package (MCP)
MCP combines multiple technologies into a single package, offering a compact solution for space-constrained environments. The communication system requires seamless integration, allowing wireless connectivity between the vehicle and the user’s smartphone or through an integrated transceiver, without the need for manual intervention.
â– **Infotainment/Instrument Cluster System:** A Mix of DRAM, NOR Flash, Managed NAND, and MCP
The infotainment and dashboard systems require a variety of storage solutions due to the range of applications they support. While e.MMC is commonly used for storing contacts, maps, and media, LPDDR4 memory is essential for handling high-resolution video playback. NOR flash plays a key role in providing critical information to the driver, such as in head-up displays that project speed, night vision assistance, and navigation data onto the windshield, keeping the driver focused on the road.
â– **Advanced Driver Assistance System (ADAS):** DRAM, NAND, NOR Flash, and MCP
Similar to the infotainment system, ADAS relies on a combination of storage technologies. Features like adaptive cruise control, lane departure warning, parking assistance, and collision avoidance require high-performance computing. As ADAS evolves toward full autonomy, the demand for faster and more efficient storage—like DDR3—will only increase.
Micron has been collaborating with automotive OEMs, chip manufacturers, and Tier 1 suppliers for over 25 years. Our DRAM, MCP, NAND, and NOR flash memory are widely used across various automotive applications. We offer a comprehensive range of storage solutions tailored to meet the diverse needs of today’s smart vehicles. For more details, visit the Micron Technology Automotive Storage Solutions page or read the original article.
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