5 Things You Need to Know about eMMC Flash
2021-12-03 | admin
It has been ten years since Steve Jobs left, but his heritage for all humans still exists, and even his influence is unexpectedly expanding. His concept of simplified design brought a tough task to the memory chip industry: it is a tough task to put the functions of multimedia display, HD camera, GPS, and other applications into a tiny, light, and portable device. The higher requirements prompted the revolution of on-chip memory and brought out a new product- eMMC Flash.
What is eMMC?
Embedded Multi-Media Card (eMMC) is a kind of internal on-chip memory that integrates flash memory and a flash memory controller within a single circuit. Usually, the eMMC solution contains three parts: Flash Memory, Flash Controller, and host interface. Multi-Media Card (MMC) is a kind of flash memory card, which defines the structure of MMC, interface, and protocol of flash memory. eMMC memory, as an expansion of MMC, meets the requirement of higher performance, reliability, speed of reading and writing, and also has a smaller shape.
l Large capacity. It is empowered by the flash memory, which usually is NAND Flash. NAND Flash was invented by Masuoka Fujio to replace NOR Flash with higher performance and more convenience. With the development of Nano-process technology, NAND Flash gradually evolves into three types: first Single-Level Cell(SLC), later comes Multi-Level Cell (MLC), and Triple-Level Cell (TLC) is the latest. The three types of NAND Flash are classified according to their density. The higher density, the larger capacity. Owes to this feature, eMMC has the advantage of high capacity from 4GB to 128GB, which can meet the demand of most industrial machines.
l Fast Speed of reading and programming. A funny fact is that TLC, as the latest product of NAND Flash, is not the best to some extent. From SLC to MLC, TLC, the density is getting higher, the cost is getting lower, but the speed of reading and programming is getting slower. But with the flash memory controller, the obstacle can be avoided. The controller of eMMC Flash can utilize the advantages of the DIEs of NAND Flash to process interleaved access. In other words, the controller can demand several NAND Flashes processing the data simultaneously, so that the efficiency of reading and programming of an eMMC Flash can be raised.
l Good compatibility. According to the description above, you may come out with a question: why not use NAND Flash independently since it is the major functional storage part of eMMC Flash? The answer is that eMMC has an incomparable advantage——it is compatible with different manufacturers and their chips with a variety of capacities. With eMMC Flash, a product's storage capacity can be diversified by merely adding various eMMC memories, bringing convenience to stock, purchase, and replace, leading to a great reduction of difficulty and cost on product design and stock.
It is commonly considered that eMMC can only be used in phones, tablets, and other smart and small devices. However, there are more applications for an industrial-level eMMC, as the following shows.
l In-vehicle equipment
With the improvement of autonomous vehicle technology, an intellectualized vehicle raises challenges to automatic operation. In this situation, eMMC Flash provides fast and stable data storage to respond to the requirement of in-time reaction. Also, its wide temperature, anti-continuous vibration, shock-resistant structure make it available to work in a harsh vehicle environment.
l Industrial automation
Data loss caused by power off or mistakenly deleting some files may take its toll in industry manufacture. eMMC Flash gives it a solution to ensure data integrity by providing real-time data storage and backup, lessening the influence of unstable power supply. Also, the long-term continuous operation and compatibility of replacement enable a lower cost.
l Medical machines
It is important for a medical machine to provide reliable and accurate data, and that is what eMMC offers. The large capacity of eMMC allows stable and long-term storage of detailed medical information. What’s more, the shock-resistant structure and interface design contribute to a lower maintaining fee and higher durability.
eMMC Flash plays an important role in the industry. VEIGLO keeps doing in-depth research to provide the manufacturer of industrial machines with high-quality eMMC that has the following advantages.
1. Industrial-grade eMMC interface
Certificated by JRDEC, a global organization that sets the standard of data storage devices, VEIGLO’s eMMC has an industrial-grade interface. Its standardized size, package, protocol, appearance, and controller programs contribute to strong compatibility that saves the energy, cost, and time on product design and purchase of chips.
2. Dynamic power management
The eMMC Flash from VEIGLO supports dynamic power management, resulting in efficient e electricity utilization. When the equipment with the eMMC Flash is not used, it can be set in the power-saving mode without the worry of data loss because of its data protection ability and real-time storage and backup.
3. Various capacity selections
VEIGLO supplies three types of eMMC with different capacities. For SLC, selections of 4/8/16GB can be chosen; for MLC, 8/16/32GB are provided; for TLC, 32/64/128GB are available. Customers can choose a suitable capacity according to their different demands.
4. Wide operating temperature range
Under the condition of the working environment of industrial production, vehicle, and medical equipment, it is important to choose a durable eMMC flash that can still function under high or low temperatures. VEIGLO’s eMMC Flash is capable of working under a -40℃ to 85℃ environment, and data can still be stored under the temperature from -55℃ to 95℃, which greatly protect the data.
5. 3000-40000 times total bytes written
It refers to the life span of an eMMC memory. The more times can be written, the longer the life span it is. The total bytes written times depend on the NAND Flash types: TLC is the most effective but shortest life span, and SLC is on the contrary. The average written times of TLC is 500-1500 times, while VEIGLO’s TLC eMMC provides more than 3000 times for total bytes written.
VEIGLO, as a professional data storage company, devotes itself to finding the best solutions of data storage for the automotive vehicle industry, medical industry, industrial automation, and security field waiting. Aiming to be a global lead data storage manufacturer, we provide users with technical support to a full range of chip memory.
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