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      Micron Memory Quiz
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    Memory Quiz Badge

    All embedded systems have some type of RAM. But how much do you REALLY know about the different types of RAM? Take our 25-question memory quiz to find out.

    To earn the Memory Badge, score 100% on the quiz, rate this document, and leave your feedback on the quiz as a comment.

     

    1) DDR SDRAM technology is the de facto memory used in almost all applications, from data-centers to mobile use cases. The reason(s) for DDR's popularity is/are:

         
         
         
         
       

     

    2) The Low Power DDR5 (LPDDR5) from Micron has been developed to address the need for next-generation memory requirements of ________________ and ______________, offering massive improvements compared to previous generations of DRAMs.

         
         
         
         
       

     

    3) LPDDR5 and DDR5 memory are the latest standards in the industry. Which of the following is NOT a key performance feature of LPDDR5 memory?

         
         
         
         
       

     

    4) Static random access memory (SRAM) is primarily used for cache. Which of the following is NOT a characteristic of Static RAM?

         
         
         
         
       

     

    5) The emergence of new technologies drives the need for advanced memory solutions. Which of the following technology applications will be able to utilize LPDDR5 fifth-generation memory benefits?

         
         
         
         
       

     

    6) True or False: The Xiaomi Mi 10 Pro and the Motorola edge+ smartphones leverage Micron's next-generation LPDDR5 DRAM, giving these phones the computational muscle to incorporate AI and other sophisticated algorithms into mobile cameras.

         
       

     

    7) True or False: RAM (Random Access Memory) is the hardware located in a computer where the operating system, application programs, and data in current use are kept, so that the computer's processor can quickly reach them.

         
       

     

    8) LPDDR5 DRAM delivers the capacity and speed needed to feed AI engines built directly into mobile processors. Micron's LPDDR5 DRAM is available in different capacities, including ___, ___, and _____, with speeds up to 5.5Gbps or 6.4Gbps.

       
       
       
         
       

     

    9) The Raspberry Pi 4 Model B single-board computer) offers a ground-breaking increase in processor speed, multimedia performance, and memory compared to the prior-generation Raspberry Pi. This product’s key features include a high-performance 64-bit quad-core processor and up to 8GB of ___________.

         
         
         
         
       

     

    10) A fundamental difference between a DDR5 module and a DDR4 module is the presence of sub-channels. A standard DDR5 module has ________ independent sub-channels, and this unlocks the data throughput needed to meet expected increased computing needs.

         
         
         
         
       

     

    11) True or False: LPDDR4 is the mobile equivalent of DDR4 memory. Compared to DDR4, it has a reduced power consumption but does so at the cost of bandwidth.

         
       

     

    12) Micron's Automotive LPDDR4 solutions introduce new energy efficiencies while providing twice the bandwidth of LPDDR3, making it an important technology for enabling next-generation automotive applications. What is the maximum data transfer rate offered by automotive LPDDR4?

         
         
         
         
       

     

    13) LPDDR4 memory has proved to be a great support to the mobile computing market. To achieve the performance and efficiency for mobile computing, the memory architecture of LPDDR4 DRAM is wholly redesigned from one channel die (in DDR3) to a __________________ per channel, for a total of 32 bits.

         
         
         
         
       

     

    14) RAM is called "random access" because any storage location can be accessed directly. Which of the following characteristics holds true for Random Access Memory?

         
         
         
         
       

     

    15) DDR5, a fifth-generation SDRAM, is the most technologically advanced DRAM available on the market to date. Out of the following, what possible reason(s) manifested the requirements on DDR5 memory for current technology trends?

         
         
         
         
       

     

    16) ________ memory can retain its contents only fleetingly (measured in milliseconds), and must be continually refreshed by reading its contents at short intervals.

         
         
         
         
       

     

    17) Synchronous Dynamic Random-Access Memory (SDRAM) has emerged as the most common memory technology for the main memory. Out of the following, what holds true for SDRAM?

         
         
         
         
       

     

    18) DDR SDRAM achieves double-data bandwidth without increasing the clock frequency by transferring data on both rising and falling edges of the clock signal.

         
       

     

    19) Standard DDR DRAMs are available in various types and form factors, such as discrete DRAMs or DIMMs. DIMMs are printed-circuit board (PCB) modules with several DRAM chips and stand for:

         
       
       
       
       

     

    20) True or False: DDR SDRAM is a volatile and complex memory device. When power is removed from it, all contents and operating configurations are assumed to be lost.

         
       

     

    21) True or False: Each DDR DRAM series manifests new features and increased memory density. Although each generation operates on identical principles, the modules in these generations are not backward-compatible.

         
       

     

    22) True or False: The Single Data Rate (SDR) DRAM memory data interface is a fully synchronous design, in which the data is captured on the positive or negative clock edge.

         
       

     

    23) DDR1 DRAM is faster than SDR DRAM, as it provides source-synchronous data capture at a rate of twice the clock frequency. This is accomplished by utilizing a __________:

         
         
         
         
       

     

    24) True or False: DDR4 DRAM kept the prefetch buffer size the same as DDR3, but achieved even higher speed and efficiency by sending more read / write commands per second.

         
       

     

    25) DDR5 modules introduced local voltage regulation on the module for better power regulation and reduced motherboard design complexity. This voltage regulation is achieved by a _____________.

         
         
         
         
       
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