DRAM

Which correctly describes the self-refresh mode of DRAM?

  1. AA mode that erases all data
  2. BA mode in which the DRAM refreshes itself internally without external commands, retaining data at low power, for example during standby
  3. CA mode that doubles access speed
Show answer and explanation

Answer: B. A mode in which the DRAM refreshes itself internally without external commands, retaining data at low power, for example during standby

In self-refresh mode, the DRAM refreshes itself using an internal timer. Because no commands are needed from the memory controller, data can be retained at low power, for example while a smartphone or PC is asleep.

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More DRAM questions

  1. How much is an 8 Gbit DRAM chip in bytes?
  2. What does the CAS latency (CL) of DRAM mean?
  3. What is the main use of the DRAM standard called LPDDR?
  4. Which is a characteristic of GDDR, used as graphics memory for GPUs?
  5. What is the main purpose of burying the gate electrode in a trench in the silicon substrate (buried word line) in recent DRAM cell transistors?