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DRAM: Dynamic RAM

DRAM: Dynamic RAM. Store their contents as charge on a capacitor rather than in a feedback loop. 1T dynamic RAM cell has a transistor and a capacitor. DRAM Read. 1. bitline precharged to V DD /2 2. wordline rises, cap. shares it charge with bitline, causing a voltage ?V

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John Kubiatowicz Electrical Engineering and Computer Sciences University of California, Berkeley

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John Kubiatowicz Electrical Engineering and Computer Sciences University of California, Berkeley

CS252 Graduate Computer Architecture Lecture 22 Memory Technology Error Correction Codes April 16 th , 2012. John Kubiatowicz Electrical Engineering and Computer Sciences University of California, Berkeley http://www.eecs.berkeley.edu/~kubitron/cs252. Review: Zoo of hardware primitives.

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Main Memory

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DMDN

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DMDN

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