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  Chipmakers are beginning to incorporate multiple types and flavors of DRAM in the same advanced package, setting the stage for increasingly distributed memory but significantly more complex designs.   Despite years of predictions that DRAM would be replaced by other types of memory, it remains an essential component in nearly all computing. Rather than fading away, its footprint is increasing, and so are the number of options.   There are several factors driving this expansion. Among them:   o  The number and density of compute elements in a system are increasing to process more data faster, particularly for AI/ML and data center applications. More cores require more memory, because there needs to be a place to store data as well as process it. o  Normally, much of this would be dealt with in cache, and SRAM has been the memory of choice for L1 through L3 cache. But SRAM no longer is scaling at the same rate as digital logic. As a result, it takes up a larger percentage of real estat

  What is the ARM Architecture   The ARM architecture, formerly known as AdvancedRISCMachine (earlier: AcornRISCMachine), is a 32-bit Reduced Instruction Set (RISC) processor architecture that is widely used in many embedded system designs. Due to its energy-saving features, the ARM processor is well suited for mobile communications, in line with its primary design goal of low power consumption.   ARM processors can be found in many consumer electronics products, from portable devices (PDAs, cell phones, multimedia players, handheld video games, and computers) to computer peripherals (hard drives, desktop routers) and even in military installations such as missile-based computers. It is found in military facilities such as bullet-loaded computers. There are also a number of ARM-based design derivatives, including Marvell's XScale architecture and Texas Instruments' OMAP family of products.   ARM Architecture Diagram   The following figure shows the ARM architecture diagram. It