دانلود رایگان مقاله انگلیسی حافظه با دسترسی تصادفی (RAM) چیست؟
عنوان فایل ترجمه فارسی: حافظه با دسترسی تصادفی (RAM) چیست؟
عنوان نسخه انگلیسی: ? (What is random access memory (RAM
مرتبط با رشته : فناوری اطلاعات و کامپیوتر
تعداد صفحات مقاله فارسی: ۱۱ صفحه
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Fast Page mode improved upon the original page mode by eliminating the column address setup time during the page cycle. This was accomplished by activating the column address buffers on the falling edge of RAS\ (rather than CAS\). Since RAS\ remains low for the entire page cycle, this acts as a transparent latch when CAS\ is high, and allows address setup to occur as soon as the column address is valid, rather than waiting for CAS\ to fall. Fast Page mode became the most widely used access method for DRAMs, and is still used on many systems. The benefit of FPM memory is reduced power consumption, mainly because sense and restore current is not necessary during page mode access. Though FPM was a major innovation, there are still some drawbacks. The most significant is that the output buffers turn off when CAS\ goes high. The minimum cycle time is 5ns before the output buffers turn off, which essentially adds at least 5ns to the cycle time.
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