TN-40-07 : Calculating Memory Power for DDR 4 SDRAM
TN-40-07 : Calculating Memory Power for DDR 4 SDRAM
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TN-40-07：计算 DDR 4 SDRAM 的内存功率
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
R. Kaarteenaho
中科院分区：
文献类型：
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作者：
Eerika Keskitalo;J. Salonen;H. Nurmi;H. Vähänikkilä;R. Kaarteenaho
介绍DDR4 SDRAM比以前的DDR3 SDRAM提供更多的带宽。除了更高的性能外，DDR4还具有更低的工作电压范围。DDR4还增加了一个2.5V的字线升压电源，以提供比从1.2V一路泵浦更有效的功率传输。结果可以是系统以更高的带宽执行，同时消耗相等或更少的系统功率。但是，从数据手册规格中确定系统应用的功耗并不总是那么容易。本技术说明详细介绍了DDR4 SDRAM的功耗，并提供了系统设计人员可以用来估计任何特定系统功耗的工具。除了提供计算系统功耗的工具和技术外，还提供了Micron的DDR4-2666“数据手册规格”和DDR4功耗数据手册使用示例。表1描述了以下各节中的命令缩写。
Introduction DDR4 SDRAM provides additional bandwidth over previous DDR3 SDRAM. In addition to the increased performance, DDR4 has a lower operating voltage range. DDR4 also added a word-line boost supply of 2.5V to provided more efficient power delivery than pumping all the way from 1.2V. The result can be a system performing at higher bandwidth while consuming equal or less system power. However, it is not always easy to determine the power consumption within a system application from the data sheet specification. This technical note details how DDR4 SDRAM consumes power and provides the tools that system designers can use to estimate power consumption in any specific system. In addition to offering tools and techniques for calculating system power, Micron’s DDR4-2666 “Data Sheet Specifications” and a DDR4 Power Spreadsheet Usage Example are provided. Table 1 describes the command abbreviations found in the following sections.