Micron recently launched its XTRMFlash memory for applications that have an 'instant on' requirement. The low pin count NOR flash memory supports human-machine interface with graphical user display, instrument clusters, infotainment systems and advanced driver assistance systems (ADAS).
Micron also offers LPDDR4 for the automotive segment as it meets the overall speed requirements and fits into the smaller spaces of compact automotive systems. Both NOR flash and DRAM are being used in dashboard clusters, while eMMC and SSDs are being used for infotainment data storage. Here's the automotive LPDDR4, which meets the automotive-grade industrial temperature range of -40°C to 95°C.
Samsung's 12Gb LPDDR4 mobile DRAM is aimed at high-end smartphones but could have uses in automotive applications. Although it's primary use is in high-end smartphones, which require high density yet low power memory to handle 4K video, you might find Samsung's 12Gb LPDDR4 mobile DRAM suitable also for automotive applications, as instrument clusters become more powerful and require more computational horsepower and higher quality graphics. At this point, it's the creation of 4K video that needs this power, not the consumption.
SRAM meets the power consumption and size requirements of automotive applications. The SRAM market has been shrinking for years, but Cypress is still bullish on the technology for emerging segments, including automotive and IoT applications, as size and power consumption are critical factors. Earlier this year, the company announced its latest SRAM with on-chip ECC. The 4Mb asynchronous SRAMs with ECC do not need additional error correction chips, which allows for simplified designs and reduced board space.
FRAM can be used in automotive event data recorders (EDRs). Cypress provides another niche, emerging memory for automotive applications: FRAM can be used for nonvolatile data logging in most automotive sub systems such as smart airbags, stability control, power train, dashboard instrumentation, battery management, engine controls and infotainment applications.
HyperRAM has a low pin count of 12, which means a smaller package of 21x21 BGA. When Cypress acquired Spansion, it also inherited the company's HyperRAM technology, an alternative to the commonly used options of SRAM and PSRAM. Its fast read time makes it suitable for automotive applications such as such as instrument clusters, infotainment and advanced driver assistance systems. It could be used in combination with HyperFlash, but DDR3 makes more sense for applications that require more high intensity computational usage.
Silicon Motion's FerriSSD for automotive comes in a small BGA package and lasts as long as the vehicle. Infotainment systems are becoming full-blown computers requiring high-performance graphics, communications, and data storage. Silicon Motion offers its automotive-grade PATA and SATA FerriSSD line designed for in-vehicle infotainment systems, replacing the traditional SATA and PATA hard disk drives. The FerriSSD line is meant to last as long as the infotainment system and handle ambient temperatures between -40° and 85°C to accommodate various climates.
SanDisk Automotive iNAND embedded flash drive uses the eMMC 4.51 HS200 specification. SanDisk, which is being acquired by Western Digital, introduced its automotive flash offerings early this year. The lineup includes automotive grade SD card and iNAND embedded flash drive in capacities of up to 64GB. These memories are designed for data-intensive automotive infotainment and connected car applications, enabling fast-loading maps and improved touch-screen responsiveness and handling interference from driving on rough roadways.