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Please help me understand the following,
Only one transistor (1T) is enough to build a dynamic memory cell. Hence, DRAMs have higher densities and tend to be less expensive.
What does 'having higher density' means in terms of memory?
Answers
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In this context, "have higher densities" mean that the same number of transistors (or the same amount of die space) can store more bits.
David Schwartz
Posted 2011-10-03T17:47:28.653
Reputation: 58 310
1Basically, more memory per area - it's an analog to the dictionary meaning of "density" as it pertains to physics. – Shinrai – 2011-10-03T17:56:04.437
"Higher density" actually means that more transistors can be packed into the same space, not that there are more bits stored per transformer (in general). – CarlF – 2011-10-03T19:29:34.693
@CarlF: Not in this context. If you read the original quote, that meaning of "density" makes the quote senseless. (What does how many transistors are needed to build a cell have to do with how many transistors can be packed into the same space?) – David Schwartz – 2011-10-03T19:51:04.447