up vote 0 down vote favorite
share [g+] share [fb]

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.

link|improve this question
93% accept rate
feedback

1 Answer

up vote 4 down vote accepted

In this context, "have higher densities" mean that the same number of transistors (or the same amount of die space) can store more bits.

link|improve this answer
1  
Basically, more memory per area - it's an analog to the dictionary meaning of "density" as it pertains to physics. – Shinrai Oct 3 '11 at 17:56
"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 Oct 3 '11 at 19:29
@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 Oct 3 '11 at 19:51
feedback

Your Answer

 
or
required, but never shown
discard

Not the answer you're looking for? Browse other questions tagged or ask your own question.